diff --git a/src/web/app/auth/tags/form.tag b/src/web/app/auth/tags/form.tag
index b5ace73716..bb424d98c2 100644
--- a/src/web/app/auth/tags/form.tag
+++ b/src/web/app/auth/tags/form.tag
@@ -111,13 +111,13 @@
 		this.session = this.opts.session
 		this.app = @session.app
 
-		cancel() {
+		this.cancel = () => {
 			this.api 'auth/deny' do
 				token: @session.token
 			.then =>
 				this.trigger('denied');
 
-		accept() {
+		this.accept = () => {
 			this.api 'auth/accept' do
 				token: @session.token
 			.then =>
diff --git a/src/web/app/auth/tags/index.tag b/src/web/app/auth/tags/index.tag
index a9f7828b96..0059fef20f 100644
--- a/src/web/app/auth/tags/index.tag
+++ b/src/web/app/auth/tags/index.tag
@@ -127,7 +127,7 @@
 				this.state = 'fetch-session-error' 
 				this.update();
 
-		accepted() {
+		this.accepted = () => {
 			this.state = 'accepted' 
 			this.update();
 
diff --git a/src/web/app/common/tags/core-error.tag b/src/web/app/common/tags/core-error.tag
index b424c8abb7..e74e205afd 100644
--- a/src/web/app/common/tags/core-error.tag
+++ b/src/web/app/common/tags/core-error.tag
@@ -57,7 +57,7 @@
 
 	</style>
 	<script>
-		retry() {
+		this.retry = () => {
 			this.unmount();
 			this.opts.retry();
 		}
diff --git a/src/web/app/common/tags/messaging/form.tag b/src/web/app/common/tags/messaging/form.tag
index 4ae1706ff1..8e74fbd350 100644
--- a/src/web/app/common/tags/messaging/form.tag
+++ b/src/web/app/common/tags/messaging/form.tag
@@ -119,7 +119,7 @@
 	<script>
 		this.mixin('api');
 
-		onpaste(e) {
+		this.onpaste = (e) => {
 			const data = e.clipboardData;
 			const items = data.items;
 			for (let i = 0; i < items.length; i++) {
@@ -130,17 +130,17 @@
 			}
 		}
 
-		onkeypress(e) {
+		this.onkeypress = (e) => {
 			if ((e.which == 10 || e.which == 13) && e.ctrlKey) {
 				this.send();
 			}
 		}
 
-		selectFile() {
+		this.selectFile = () => {
 			this.refs.file.click();
 		}
 
-		selectFileFromDrive() {
+		this.selectFileFromDrive = () => {
 			const browser = document.body.appendChild(document.createElement('mk-select-file-from-drive-window'));
 			const event = riot.observable();
 			riot.mount(browser, {
@@ -152,7 +152,7 @@
 			});
 		}
 
-		send() {
+		this.send = () => {
 			this.sending = true;
 			this.api('messaging/messages/create', {
 				user_id: this.opts.user.id,
@@ -166,7 +166,7 @@
 				this.update();
 			});
 
-		clear() {
+		this.clear = () => {
 			this.refs.text.value = '';
 			this.files = [];
 			this.update();
diff --git a/src/web/app/common/tags/messaging/index.tag b/src/web/app/common/tags/messaging/index.tag
index e9a031a2bd..e7d110140a 100644
--- a/src/web/app/common/tags/messaging/index.tag
+++ b/src/web/app/common/tags/messaging/index.tag
@@ -305,7 +305,7 @@
 			});
 		}
 
-		search() {
+		this.search = () => {
 			const q = this.refs.search.value;
 			if (q == '') {
 				this.searchResult = [];
@@ -323,7 +323,7 @@
 				.catch (err) =>
 					console.error err
 
-		on-search-keydown(e) {
+		this.on-search-keydown = (e) => {
 			key = e.which
 			switch (key)
 				| 9, 40 => // Key[TAB] or Key[↓]
@@ -331,7 +331,7 @@
 					e.stopPropagation();
 					this.refs.search-result.childNodes[0].focus();
 
-		on-search-result-keydown(i, e) {
+		this.on-search-result-keydown = (i, e) => {
 			key = e.which
 			switch (key)
 				| 10, 13 => // Key[ENTER]
diff --git a/src/web/app/common/tags/messaging/room.tag b/src/web/app/common/tags/messaging/room.tag
index a402585693..f04fd4638d 100644
--- a/src/web/app/common/tags/messaging/room.tag
+++ b/src/web/app/common/tags/messaging/room.tag
@@ -128,18 +128,18 @@
 		this.mixin('api');
 		this.mixin('messaging-stream');
 
-		this.user = this.opts.user
-		this.init = true
-		this.sending = false
-		this.messages = []
+		this.user = this.opts.user;
+		this.init = true;
+		this.sending = false;
+		this.messages = [];
 
-		this.connection = new @MessagingStreamConnection this.I, @user.id
+		this.connection = new this.MessagingStreamConnection(this.I, this.user.id);
 
 		this.on('mount', () => {
-			@connection.event.on 'message' this.on-message
-			@connection.event.on 'read' this.on-read
+			this.connection.event.on('message' this.onMessage);
+			this.connection.event.on('read' this.onRead);
 
-			document.add-event-listener 'visibilitychange' this.on-visibilitychange
+			document.addEventListener 'visibilitychange' this.on-visibilitychange
 
 			this.api 'messaging/messages' do
 				user_id: @user.id
@@ -156,7 +156,7 @@
 			@connection.event.off 'read' this.on-read
 			@connection.close!
 
-			document.remove-event-listener 'visibilitychange' this.on-visibilitychange
+			document.removeEventListener 'visibilitychange' this.on-visibilitychange
 
 		this.on('update', () => {
 			@messages.for-each (message) =>
@@ -165,7 +165,7 @@
 				message._date = date
 				message._datetext = month + '月 ' + date + '日'
 
-		on-message(message) {
+		this.on-message = (message) => {
 			is-bottom = @is-bottom!
 
 			@messages.push message
@@ -182,7 +182,7 @@
 				// Notify
 				@notify '新しいメッセージがあります'
 
-		on-read(ids) {
+		this.on-read = (ids) => {
 			if not Array.isArray ids then ids = [ids]
 			ids.for-each (id) =>
 				if (@messages.some (x) => x.id == id)
@@ -190,15 +190,15 @@
 					@messages[exist].is_read = true
 					this.update();
 
-		is-bottom() {
+		this.is-bottom = () => {
 			current = this.root.scroll-top + this.root.offset-height
 			max = this.root.scroll-height
 			current > (max - 32)
 
-		scroll-to-bottom() {
+		this.scroll-to-bottom = () => {
 			this.root.scroll-top = this.root.scroll-height
 
-		notify(message) {
+		this.notify = (message) => {
 			n = document.createElement 'p' 
 			n.inner-HTML = '<i class="fa fa-arrow-circle-down"></i>' + message
 			n.onclick = =>
@@ -213,7 +213,7 @@
 				, 1000ms
 			, 4000ms
 
-		on-visibilitychange() {
+		this.on-visibilitychange = () => {
 			if document.hidden then return
 			@messages.for-each (message) =>
 				if message.user_id != this.I.id and not message.is_read
diff --git a/src/web/app/common/tags/poll-editor.tag b/src/web/app/common/tags/poll-editor.tag
index e35d8e1369..9d9b28c763 100644
--- a/src/web/app/common/tags/poll-editor.tag
+++ b/src/web/app/common/tags/poll-editor.tag
@@ -88,26 +88,26 @@
 	<script>
 		this.choices = ['', ''];
 
-		oninput(i, e) {
+		this.oninput = (i, e) => {
 			this.choices[i] = e.target.value;
 		}
 
-		add() {
+		this.add = () => {
 			this.choices.push('');
 			this.update();
 			this.refs.choices.childNodes[this.choices.length - 1].childNodes[0].focus();
 		}
 
-		remove(i) {
+		this.remove = (i) => {
 			this.choices = this.choices.filter((_, _i) => _i != i);
 			this.update();
 		}
 
-		destroy() {
+		this.destroy = () => {
 			this.opts.ondestroy();
 		}
 
-		get() {
+		this.get = () => {
 			return {
 				choices: this.choices.filter(choice => choice != '')
 			}
diff --git a/src/web/app/common/tags/poll.tag b/src/web/app/common/tags/poll.tag
index c9209c3a3b..6ddaf77595 100644
--- a/src/web/app/common/tags/poll.tag
+++ b/src/web/app/common/tags/poll.tag
@@ -76,11 +76,11 @@
 		this.isVoted = this.poll.choices.some(c => c.is_voted);
 		this.result = this.isVoted;
 
-		toggleResult() {
+		this.toggleResult = () => {
 			this.result = !this.result;
 		}
 
-		vote(id) {
+		this.vote = (id) => {
 			if (this.poll.choices.some(c => c.is_voted)) return;
 			this.api('posts/polls/vote', {
 				post_id: this.post.id,
diff --git a/src/web/app/common/tags/signin-history.tag b/src/web/app/common/tags/signin-history.tag
index 4b5c844b7f..97087e3473 100644
--- a/src/web/app/common/tags/signin-history.tag
+++ b/src/web/app/common/tags/signin-history.tag
@@ -68,7 +68,7 @@
 		this.on('unmount', () => {
 			@stream.off 'signin' this.on-signin
 
-		on-signin(signin) {
+		this.on-signin = (signin) => {
 			@history.unshift signin
 			this.update();
 	</script>
diff --git a/src/web/app/common/tags/signin.tag b/src/web/app/common/tags/signin.tag
index 5cb63685fa..e71795708f 100644
--- a/src/web/app/common/tags/signin.tag
+++ b/src/web/app/common/tags/signin.tag
@@ -102,7 +102,7 @@
 		this.user = null;
 		this.signing = false;
 
-		oninput() {
+		this.oninput = () => {
 			this.api 'users/show' do
 				username: this.refs.username.value
 			.then (user) =>
@@ -110,7 +110,7 @@
 				this.trigger 'user' user
 				this.update();
 
-		onsubmit(e) {
+		this.onsubmit = (e) => {
 			e.preventDefault();
 
 			if this.refs.username.value == ''
diff --git a/src/web/app/common/tags/signup.tag b/src/web/app/common/tags/signup.tag
index 55b1b76138..f8ac1c19cd 100644
--- a/src/web/app/common/tags/signup.tag
+++ b/src/web/app/common/tags/signup.tag
@@ -199,7 +199,7 @@
 			head.appendChild script
 		});
 
-		on-change-username() {
+		this.on-change-username = () => {
 			username = this.refs.username.value
 
 			if username == ''
@@ -232,7 +232,7 @@
 					this.username-state = 'error' 
 					this.update();
 
-		on-change-password() {
+		this.on-change-password = () => {
 			password = this.refs.password.value
 
 			if password == ''
@@ -252,7 +252,7 @@
 
 			this.refs.password-metar.style.width = (strength * 100) + '%' 
 
-		on-change-password-retype() {
+		this.on-change-password-retype = () => {
 			password = this.refs.password.value
 			retyped-password = this.refs.password-retype.value
 
@@ -265,7 +265,7 @@
 			else
 				this.password-retype-state = 'not-match' 
 
-		onsubmit(e) {
+		this.onsubmit = (e) => {
 			e.preventDefault();
 
 			username = this.refs.username.value
diff --git a/src/web/app/common/tags/time.tag b/src/web/app/common/tags/time.tag
index 9bdb7f4cd7..1311133539 100644
--- a/src/web/app/common/tags/time.tag
+++ b/src/web/app/common/tags/time.tag
@@ -22,7 +22,7 @@
 			if @mode == 'relative' or @mode == 'detail' 
 				clear-interval @tickid
 
-		tick() {
+		this.tick = () => {
 			now = new Date!
 			ago = (now - @time) / 1000ms
 			this.relative = switch
diff --git a/src/web/app/common/tags/uploader.tag b/src/web/app/common/tags/uploader.tag
index 72f6eaa224..f6e99892a1 100644
--- a/src/web/app/common/tags/uploader.tag
+++ b/src/web/app/common/tags/uploader.tag
@@ -145,7 +145,7 @@
 		this.uploads = []
 
 		
-		upload(file, folder) {
+		this.upload = (file, folder) => {
 			id = Math.random!
 
 			ctx =
diff --git a/src/web/app/desktop/tags/analog-clock.tag b/src/web/app/desktop/tags/analog-clock.tag
index 06896fe20b..c1390be649 100644
--- a/src/web/app/desktop/tags/analog-clock.tag
+++ b/src/web/app/desktop/tags/analog-clock.tag
@@ -16,7 +16,7 @@
 		this.on('unmount', () => {
 			clear-interval @clock
 
-		draw() {
+		this.draw = () => {
 			now = new Date!
 			s = now.get-seconds!
 			m = now.get-minutes!
diff --git a/src/web/app/desktop/tags/autocomplete-suggestion.tag b/src/web/app/desktop/tags/autocomplete-suggestion.tag
index cf735255bb..29ce938b84 100644
--- a/src/web/app/desktop/tags/autocomplete-suggestion.tag
+++ b/src/web/app/desktop/tags/autocomplete-suggestion.tag
@@ -89,11 +89,11 @@
 		this.select = -1
 
 		this.on('mount', () => {
-			@textarea.add-event-listener 'keydown' this.on-keydown
+			@textarea.addEventListener 'keydown' this.on-keydown
 
 			all = document.query-selector-all 'body *'
 			Array.prototype.for-each.call all, (el) =>
-				el.add-event-listener 'mousedown' @mousedown
+				el.addEventListener 'mousedown' @mousedown
 
 			this.api 'users/search_by_username' do
 				query: @q
@@ -106,20 +106,20 @@
 				console.error err
 
 		this.on('unmount', () => {
-			@textarea.remove-event-listener 'keydown' this.on-keydown
+			@textarea.removeEventListener 'keydown' this.on-keydown
 
 			all = document.query-selector-all 'body *'
 			Array.prototype.for-each.call all, (el) =>
-				el.remove-event-listener 'mousedown' @mousedown
+				el.removeEventListener 'mousedown' @mousedown
 
-		mousedown(e) {
+		this.mousedown = (e) => {
 			if (!contains this.root, e.target) and (this.root != e.target)
 				@close!
 
-		on-click(e) {
+		this.on-click = (e) => {
 			@complete e.item
 
-		on-keydown(e) {
+		this.on-keydown = (e) => {
 			key = e.which
 			switch (key)
 				| 10, 13 => // Key[ENTER]
@@ -147,7 +147,7 @@
 				| _ =>
 					@close!
 
-		select-next() {
+		this.select-next = () => {
 			@select++
 
 			if @select >= @users.length
@@ -155,7 +155,7 @@
 
 			@apply-select!
 
-		select-prev() {
+		this.select-prev = () => {
 			@select--
 
 			if @select < 0
@@ -163,17 +163,17 @@
 
 			@apply-select!
 
-		apply-select() {
+		this.apply-select = () => {
 			this.refs.users.children.for-each (el) =>
 				el.remove-attribute 'data-selected' 
 
 			this.refs.users.children[@select].setAttribute 'data-selected' \true
 			this.refs.users.children[@select].focus();
 
-		complete(user) {
+		this.complete = (user) => {
 			this.opts.complete user
 
-		close() {
+		this.close = () => {
 			this.opts.close!
 
 		function contains(parent, child)
diff --git a/src/web/app/desktop/tags/big-follow-button.tag b/src/web/app/desktop/tags/big-follow-button.tag
index 6c87e87558..78ecbc2d62 100644
--- a/src/web/app/desktop/tags/big-follow-button.tag
+++ b/src/web/app/desktop/tags/big-follow-button.tag
@@ -91,17 +91,17 @@
 			@stream.off 'follow' this.on-stream-follow
 			@stream.off 'unfollow' this.on-stream-unfollow
 
-		on-stream-follow(user) {
+		this.on-stream-follow = (user) => {
 			if user.id == @user.id
 				this.user = user
 				this.update();
 
-		on-stream-unfollow(user) {
+		this.on-stream-unfollow = (user) => {
 			if user.id == @user.id
 				this.user = user
 				this.update();
 
-		onclick() {
+		this.onclick = () => {
 			this.wait = true
 			if @user.is_following
 				this.api 'following/delete' do
diff --git a/src/web/app/desktop/tags/contextmenu.tag b/src/web/app/desktop/tags/contextmenu.tag
index 0d8cb313ac..400090c6c4 100644
--- a/src/web/app/desktop/tags/contextmenu.tag
+++ b/src/web/app/desktop/tags/contextmenu.tag
@@ -94,19 +94,19 @@
 
 	</style>
 	<script>
-		this.root.add-event-listener 'contextmenu' (e) =>
+		this.root.addEventListener 'contextmenu' (e) =>
 			e.preventDefault();
 
-		mousedown(e) {
+		this.mousedown = (e) => {
 			e.preventDefault();
 			if (!contains this.root, e.target) and (this.root != e.target)
 				@close!
 			return false
 
-		open(pos) {
+		this.open = (pos) => {
 			all = document.query-selector-all 'body *'
 			Array.prototype.for-each.call all, (el) =>
-				el.add-event-listener 'mousedown' @mousedown
+				el.addEventListener 'mousedown' @mousedown
 			this.root.style.display = 'block' 
 			this.root.style.left = pos.x + 'px' 
 			this.root.style.top = pos.y + 'px' 
@@ -121,10 +121,10 @@
 				easing: 'linear' 
 			}
 
-		close() {
+		this.close = () => {
 			all = document.query-selector-all 'body *'
 			Array.prototype.for-each.call all, (el) =>
-				el.remove-event-listener 'mousedown' @mousedown
+				el.removeEventListener 'mousedown' @mousedown
 			this.trigger('closed');
 			this.unmount();
 
diff --git a/src/web/app/desktop/tags/crop-window.tag b/src/web/app/desktop/tags/crop-window.tag
index e022c76fa7..45704a4b58 100644
--- a/src/web/app/desktop/tags/crop-window.tag
+++ b/src/web/app/desktop/tags/crop-window.tag
@@ -172,16 +172,16 @@
 				highlight: no
 				view-mode: 1
 
-		ok() {
+		this.ok = () => {
 			@cropper.get-cropped-canvas!.to-blob (blob) =>
 				this.trigger 'cropped' blob
 				this.refs.window.close!
 
-		skip() {
+		this.skip = () => {
 			this.trigger('skiped');
 			this.refs.window.close!
 
-		cancel() {
+		this.cancel = () => {
 			this.trigger('canceled');
 			this.refs.window.close!
 	</script>
diff --git a/src/web/app/desktop/tags/dialog.tag b/src/web/app/desktop/tags/dialog.tag
index a444ac18f6..f163f99b81 100644
--- a/src/web/app/desktop/tags/dialog.tag
+++ b/src/web/app/desktop/tags/dialog.tag
@@ -114,7 +114,7 @@
 				easing: [ 0, 0.5, 0.5, 1 ]
 			}
 
-		close() {
+		this.close = () => {
 			this.refs.bg.style.pointer-events = 'none' 
 			Velocity this.refs.bg, 'finish' true
 			Velocity this.refs.bg, {
@@ -138,7 +138,7 @@
 					this.unmount();
 			}
 
-		bg-click() {
+		this.bg-click = () => {
 			if @can-through
 				if this.opts.on-through?
 					this.opts.on-through!
diff --git a/src/web/app/desktop/tags/donation.tag b/src/web/app/desktop/tags/donation.tag
index 9ce2ed819f..0946e430da 100644
--- a/src/web/app/desktop/tags/donation.tag
+++ b/src/web/app/desktop/tags/donation.tag
@@ -50,7 +50,7 @@
 		this.mixin('api');
 		this.mixin('i');
 
-		close(e) {
+		this.close = (e) => {
 			e.preventDefault();
 			e.stopPropagation();
 
diff --git a/src/web/app/desktop/tags/drive/base-contextmenu.tag b/src/web/app/desktop/tags/drive/base-contextmenu.tag
index 7eb5fd3b98..9503e639d6 100644
--- a/src/web/app/desktop/tags/drive/base-contextmenu.tag
+++ b/src/web/app/desktop/tags/drive/base-contextmenu.tag
@@ -20,18 +20,18 @@
 				this.trigger('closed');
 				this.unmount();
 
-		open(pos) {
+		this.open = (pos) => {
 			this.refs.ctx.open pos
 
-		create-folder() {
+		this.create-folder = () => {
 			this.browser.create-folder!
 			this.refs.ctx.close!
 
-		upload() {
+		this.upload = () => {
 			this.browser.select-local-file!
 			this.refs.ctx.close!
 
-		url-upload() {
+		this.url-upload = () => {
 			this.browser.url-upload!
 			this.refs.ctx.close!
 	</script>
diff --git a/src/web/app/desktop/tags/drive/browser-window.tag b/src/web/app/desktop/tags/drive/browser-window.tag
index c36726444f..b5b2572d45 100644
--- a/src/web/app/desktop/tags/drive/browser-window.tag
+++ b/src/web/app/desktop/tags/drive/browser-window.tag
@@ -40,7 +40,7 @@
 				@update do
 					usage: info.usage / info.capacity * 100
 
-		close() {
+		this.close = () => {
 			this.refs.window.close!
 	</script>
 </mk-drive-browser-window>
diff --git a/src/web/app/desktop/tags/drive/browser.tag b/src/web/app/desktop/tags/drive/browser.tag
index 2a93afbb24..383da90188 100644
--- a/src/web/app/desktop/tags/drive/browser.tag
+++ b/src/web/app/desktop/tags/drive/browser.tag
@@ -289,27 +289,27 @@
 			@stream.off 'drive_folder_created' this.on-stream-drive-folder-created
 			@stream.off 'drive_folder_updated' this.on-stream-drive-folder-updated
 
-		on-stream-drive-file-created(file) {
+		this.on-stream-drive-file-created = (file) => {
 			@add-file file, true
 
-		on-stream-drive-file-updated(file) {
+		this.on-stream-drive-file-updated = (file) => {
 			current = if this.folder? then this.folder.id else null
 			if current != file.folder_id
 				@remove-file file
 			else
 				@add-file file, true
 
-		on-stream-drive-folder-created(folder) {
+		this.on-stream-drive-folder-created = (folder) => {
 			@add-folder folder, true
 
-		on-stream-drive-folder-updated(folder) {
+		this.on-stream-drive-folder-updated = (folder) => {
 			current = if this.folder? then this.folder.id else null
 			if current != folder.parent_id
 				@remove-folder folder
 			else
 				@add-folder folder, true
 
-		onmousedown(e) {
+		this.onmousedown = (e) => {
 			if (contains this.refs.folders-container, e.target) or (contains this.refs.files-container, e.target)
 				return true
 
@@ -341,20 +341,20 @@
 					this.refs.selection.style.top = cursor-y + 'px' 
 
 			up = (e) =>
-				document.document-element.remove-event-listener 'mousemove' move
-				document.document-element.remove-event-listener 'mouseup' up
+				document.document-element.removeEventListener 'mousemove' move
+				document.document-element.removeEventListener 'mouseup' up
 
 				this.refs.selection.style.display = 'none' 
 
-			document.document-element.add-event-listener 'mousemove' move
-			document.document-element.add-event-listener 'mouseup' up
+			document.document-element.addEventListener 'mousemove' move
+			document.document-element.addEventListener 'mouseup' up
 
-		path-oncontextmenu(e) {
+		this.path-oncontextmenu = (e) => {
 			e.preventDefault();
 			e.stop-immediate-propagation!
 			return false
 
-		ondragover(e) {
+		this.ondragover = (e) => {
 			e.preventDefault();
 			e.stopPropagation();
 
@@ -371,15 +371,15 @@
 				e.dataTransfer.dropEffect = 'none' 
 			return false
 
-		ondragenter(e) {
+		this.ondragenter = (e) => {
 			e.preventDefault();
 			if !@is-drag-source
 				this.draghover = true
 
-		ondragleave(e) {
+		this.ondragleave = (e) => {
 			this.draghover = false
 
-		ondrop(e) {
+		this.ondrop = (e) => {
 			e.preventDefault();
 			e.stopPropagation();
 
@@ -438,7 +438,7 @@
 
 			return false
 
-		oncontextmenu(e) {
+		this.oncontextmenu = (e) => {
 			e.preventDefault();
 			e.stop-immediate-propagation!
 
@@ -452,10 +452,10 @@
 
 			return false
 
-		select-local-file() {
+		this.select-local-file = () => {
 			this.refs.file-input.click!
 
-		url-upload() {
+		this.url-upload = () => {
 			url <~ @input-dialog do
 				'URLアップロード'
 				'アップロードしたいファイルのURL'
@@ -473,7 +473,7 @@
 						text: 'OK' 
 					]
 
-		create-folder() {
+		this.create-folder = () => {
 			name <~ @input-dialog do
 				'フォルダー作成'
 				'フォルダー名'
@@ -488,26 +488,26 @@
 			.catch (err) =>
 				console.error err
 
-		change-file-input() {
+		this.change-file-input = () => {
 			files = this.refs.file-input.files
 			for i from 0 to files.length - 1
 				file = files.item i
 				@upload file, this.folder
 
-		upload(file, folder) {
+		this.upload = (file, folder) => {
 			if folder? and typeof folder == 'object' 
 				folder = folder.id
 			this.refs.uploader.upload file, folder
 
-		get-selection() {
+		this.get-selection = () => {
 			this.files.filter (file) -> file._selected
 
-		new-window(folder-id) {
+		this.new-window = (folder-id) => {
 			browser = document.body.appendChild document.createElement 'mk-drive-browser-window' 
 			riot.mount browser, do
 				folder: folder-id
 
-		move(target-folder) {
+		this.move = (target-folder) => {
 			if target-folder? and typeof target-folder == 'object' 
 				target-folder = target-folder.id
 
@@ -537,7 +537,7 @@
 			.catch (err, text-status) ->
 				console.error err
 
-		add-folder(folder, unshift = false) {
+		this.add-folder = (folder, unshift = false) => {
 			current = if this.folder? then this.folder.id else null
 			if current != folder.parent_id
 				return
@@ -555,7 +555,7 @@
 
 			this.update();
 
-		add-file(file, unshift = false) {
+		this.add-file = (file, unshift = false) => {
 			current = if this.folder? then this.folder.id else null
 			if current != file.folder_id
 				return
@@ -573,26 +573,26 @@
 
 			this.update();
 
-		remove-folder(folder) {
+		this.remove-folder = (folder) => {
 			if typeof folder == 'object' 
 				folder = folder.id
 			this.folders = this.folders.filter (f) -> f.id != folder
 			this.update();
 
-		remove-file(file) {
+		this.remove-file = (file) => {
 			if typeof file == 'object' 
 				file = file.id
 			this.files = this.files.filter (f) -> f.id != file
 			this.update();
 
-		go-root() {
+		this.go-root = () => {
 			if this.folder != null
 				this.folder = null
 				this.hierarchy-folders = []
 				this.update();
 				@load!
 
-		load() {
+		this.load = () => {
 			this.folders = []
 			this.files = []
 			this.more-folders = false
diff --git a/src/web/app/desktop/tags/drive/file-contextmenu.tag b/src/web/app/desktop/tags/drive/file-contextmenu.tag
index 06e7085621..e8d75ccd4d 100644
--- a/src/web/app/desktop/tags/drive/file-contextmenu.tag
+++ b/src/web/app/desktop/tags/drive/file-contextmenu.tag
@@ -54,10 +54,10 @@
 				this.trigger('closed');
 				this.unmount();
 
-		open(pos) {
+		this.open = (pos) => {
 			this.refs.ctx.open pos
 
-		rename() {
+		this.rename = () => {
 			this.refs.ctx.close!
 
 			name <~ @input-dialog do
@@ -73,25 +73,25 @@
 			.catch (err) =>
 				console.error err
 
-		copy-url() {
+		this.copy-url = () => {
 			@NotImplementedException!
 
-		download() {
+		this.download = () => {
 			this.refs.ctx.close!
 
-		set-avatar() {
+		this.set-avatar = () => {
 			this.refs.ctx.close!
 			@update-avatar this.I, null, this.file
 
-		set-banner() {
+		this.set-banner = () => {
 			this.refs.ctx.close!
 			@update-banner this.I, null, this.file
 
-		set-wallpaper() {
+		this.set-wallpaper = () => {
 			this.refs.ctx.close!
 			@update-wallpaper this.I, null, this.file
 
-		add-app() {
+		this.add-app = () => {
 			@NotImplementedException!
 	</script>
 </mk-drive-browser-file-contextmenu>
diff --git a/src/web/app/desktop/tags/drive/file.tag b/src/web/app/desktop/tags/drive/file.tag
index d41c5279fc..e0e9beb217 100644
--- a/src/web/app/desktop/tags/drive/file.tag
+++ b/src/web/app/desktop/tags/drive/file.tag
@@ -155,7 +155,7 @@
 
 		this.is-contextmenu-showing = false
 
-		onclick() {
+		this.onclick = () => {
 			if this.browser.multiple
 				if this.file._selected?
 					this.file._selected = !this.file._selected
@@ -171,7 +171,7 @@
 					this.file._selected = true
 					this.browser.trigger 'change-selection' this.file
 
-		oncontextmenu(e) {
+		this.oncontextmenu = (e) => {
 			e.preventDefault();
 			e.stop-immediate-propagation!
 
@@ -190,7 +190,7 @@
 				this.update();
 			return false
 
-		ondragstart(e) {
+		this.ondragstart = (e) => {
 			e.dataTransfer.effect-allowed = 'move' 
 			e.dataTransfer.set-data 'text' JSON.stringify do
 				type: 'file' 
@@ -202,7 +202,7 @@
 			// (=あなたの子供が、ドラッグを開始しましたよ)
 			this.browser.is-drag-source = true
 
-		ondragend(e) {
+		this.ondragend = (e) => {
 			this.is-dragging = false
 			this.browser.is-drag-source = false
 	</script>
diff --git a/src/web/app/desktop/tags/drive/folder-contextmenu.tag b/src/web/app/desktop/tags/drive/folder-contextmenu.tag
index df094d0bc7..92fb5457c2 100644
--- a/src/web/app/desktop/tags/drive/folder-contextmenu.tag
+++ b/src/web/app/desktop/tags/drive/folder-contextmenu.tag
@@ -24,30 +24,30 @@
 		this.browser = this.opts.browser
 		this.folder = this.opts.folder
 
-		open(pos) {
+		this.open = (pos) => {
 			this.refs.ctx.open pos
 
 			this.refs.ctx.on('closed', () => {
 				this.trigger('closed');
 				this.unmount();
 
-		move() {
+		this.move = () => {
 			this.browser.move this.folder.id
 			this.refs.ctx.close!
 
-		new-window() {
+		this.new-window = () => {
 			this.browser.new-window this.folder.id
 			this.refs.ctx.close!
 
-		create-folder() {
+		this.create-folder = () => {
 			this.browser.create-folder!
 			this.refs.ctx.close!
 
-		upload() {
+		this.upload = () => {
 			this.browser.select-lcoal-file!
 			this.refs.ctx.close!
 
-		rename() {
+		this.rename = () => {
 			this.refs.ctx.close!
 
 			name <~ @input-dialog do
diff --git a/src/web/app/desktop/tags/drive/folder.tag b/src/web/app/desktop/tags/drive/folder.tag
index 2d58ddefc7..25524a80d6 100644
--- a/src/web/app/desktop/tags/drive/folder.tag
+++ b/src/web/app/desktop/tags/drive/folder.tag
@@ -61,16 +61,16 @@
 		this.draghover = false
 		this.is-contextmenu-showing = false
 
-		onclick() {
+		this.onclick = () => {
 			this.browser.move this.folder
 
-		onmouseover() {
+		this.onmouseover = () => {
 			this.hover = true
 
-		onmouseout() {
+		this.onmouseout = () => {
 			this.hover = false
 
-		ondragover(e) {
+		this.ondragover = (e) => {
 			e.preventDefault();
 			e.stopPropagation();
 
@@ -86,14 +86,14 @@
 				e.dataTransfer.dropEffect = 'none' 
 			return false
 
-		ondragenter() {
+		this.ondragenter = () => {
 			if !@is-dragging
 				this.draghover = true
 
-		ondragleave() {
+		this.ondragleave = () => {
 			this.draghover = false
 
-		ondrop(e) {
+		this.ondrop = (e) => {
 			e.stopPropagation();
 			this.draghover = false
 
@@ -146,7 +146,7 @@
 
 			return false
 
-		ondragstart(e) {
+		this.ondragstart = (e) => {
 			e.dataTransfer.effect-allowed = 'move' 
 			e.dataTransfer.set-data 'text' JSON.stringify do
 				type: 'folder' 
@@ -157,11 +157,11 @@
 			// (=あなたの子供が、ドラッグを開始しましたよ)
 			this.browser.is-drag-source = true
 
-		ondragend(e) {
+		this.ondragend = (e) => {
 			this.is-dragging = false
 			this.browser.is-drag-source = false
 
-		oncontextmenu(e) {
+		this.oncontextmenu = (e) => {
 			e.preventDefault();
 			e.stop-immediate-propagation!
 
diff --git a/src/web/app/desktop/tags/drive/nav-folder.tag b/src/web/app/desktop/tags/drive/nav-folder.tag
index 8f8f00783a..5a620d76c8 100644
--- a/src/web/app/desktop/tags/drive/nav-folder.tag
+++ b/src/web/app/desktop/tags/drive/nav-folder.tag
@@ -16,16 +16,16 @@
 
 		this.hover = false
 
-		onclick() {
+		this.onclick = () => {
 			this.browser.move this.folder
 
-		onmouseover() {
+		this.onmouseover = () => {
 			this.hover = true
 
-		onmouseout() {
+		this.onmouseout = () => {
 			this.hover = false
 
-		ondragover(e) {
+		this.ondragover = (e) => {
 			e.preventDefault();
 			e.stopPropagation();
 
@@ -39,15 +39,15 @@
 				e.dataTransfer.dropEffect = 'move' 
 			return false
 
-		ondragenter() {
+		this.ondragenter = () => {
 			if this.folder != null or this.browser.folder != null
 				this.draghover = true
 
-		ondragleave() {
+		this.ondragleave = () => {
 			if this.folder != null or this.browser.folder != null
 				this.draghover = false
 
-		ondrop(e) {
+		this.ondrop = (e) => {
 			e.stopPropagation();
 			this.draghover = false
 
diff --git a/src/web/app/desktop/tags/follow-button.tag b/src/web/app/desktop/tags/follow-button.tag
index 575c99c700..87284cbc04 100644
--- a/src/web/app/desktop/tags/follow-button.tag
+++ b/src/web/app/desktop/tags/follow-button.tag
@@ -88,17 +88,17 @@
 			@stream.off 'follow' this.on-stream-follow
 			@stream.off 'unfollow' this.on-stream-unfollow
 
-		on-stream-follow(user) {
+		this.on-stream-follow = (user) => {
 			if user.id == @user.id
 				this.user = user
 				this.update();
 
-		on-stream-unfollow(user) {
+		this.on-stream-unfollow = (user) => {
 			if user.id == @user.id
 				this.user = user
 				this.update();
 
-		onclick() {
+		this.onclick = () => {
 			this.wait = true
 			if @user.is_following
 				this.api 'following/delete' do
diff --git a/src/web/app/desktop/tags/following-setuper.tag b/src/web/app/desktop/tags/following-setuper.tag
index 5faba3e653..fd1aa4bc88 100644
--- a/src/web/app/desktop/tags/following-setuper.tag
+++ b/src/web/app/desktop/tags/following-setuper.tag
@@ -135,7 +135,7 @@
 		this.on('mount', () => {
 			@load!
 
-		load() {
+		this.load = () => {
 			this.loading = true
 			this.users = null
 			this.update();
@@ -150,14 +150,14 @@
 			.catch (err, text-status) ->
 				console.error err
 
-		refresh() {
+		this.refresh = () => {
 			if @users.length < @limit
 				this.page = 0
 			else
 				@page++
 			@load!
 
-		close() {
+		this.close = () => {
 			this.unmount();
 	</script>
 </mk-following-setuper>
diff --git a/src/web/app/desktop/tags/go-top.tag b/src/web/app/desktop/tags/go-top.tag
index 42efaf2f2a..cb75c04807 100644
--- a/src/web/app/desktop/tags/go-top.tag
+++ b/src/web/app/desktop/tags/go-top.tag
@@ -1,11 +1,11 @@
 <mk-go-top>
 	<button class="hidden" title="一番上へ"><i class="fa fa-angle-up"></i></button>
 	<script>
-		window.add-event-listener 'load' this.on-scroll
-		window.add-event-listener 'scroll' this.on-scroll
-		window.add-event-listener 'resize' this.on-scroll
+		window.addEventListener 'load' this.on-scroll
+		window.addEventListener 'scroll' this.on-scroll
+		window.addEventListener 'resize' this.on-scroll
 
-		on-scroll() {
+		this.on-scroll = () => {
 			if $ window .scroll-top! > 500px
 				@remove-class 'hidden' 
 			else
diff --git a/src/web/app/desktop/tags/home-widgets/calendar.tag b/src/web/app/desktop/tags/home-widgets/calendar.tag
index 81378b8a7c..fb8d889629 100644
--- a/src/web/app/desktop/tags/home-widgets/calendar.tag
+++ b/src/web/app/desktop/tags/home-widgets/calendar.tag
@@ -106,7 +106,7 @@
 
 	</style>
 	<script>
-		draw() {
+		this.draw = () => {
 			now = new Date!
 			nd = now.get-date!
 			nm = now.get-month!
diff --git a/src/web/app/desktop/tags/home-widgets/mentions.tag b/src/web/app/desktop/tags/home-widgets/mentions.tag
index 149a302386..492eacb177 100644
--- a/src/web/app/desktop/tags/home-widgets/mentions.tag
+++ b/src/web/app/desktop/tags/home-widgets/mentions.tag
@@ -55,23 +55,23 @@
 		this.mode = 'all' 
 
 		this.on('mount', () => {
-			document.add-event-listener 'keydown' this.on-document-keydown
-			window.add-event-listener 'scroll' this.on-scroll
+			document.addEventListener 'keydown' this.on-document-keydown
+			window.addEventListener 'scroll' this.on-scroll
 
 			@fetch =>
 				this.trigger('loaded');
 
 		this.on('unmount', () => {
-			document.remove-event-listener 'keydown' this.on-document-keydown
-			window.remove-event-listener 'scroll' this.on-scroll
+			document.removeEventListener 'keydown' this.on-document-keydown
+			window.removeEventListener 'scroll' this.on-scroll
 
-		on-document-keydown(e) {
+		this.on-document-keydown = (e) => {
 			tag = e.target.tag-name.to-lower-case!
 			if tag != 'input' and tag != 'textarea' 
 				if e.which == 84 // t
 					this.refs.timeline.focus();
 
-		fetch(cb) {
+		this.fetch = (cb) => {
 			this.api 'posts/mentions' do
 				following: @mode == 'following' 
 			.then (posts) =>
@@ -84,7 +84,7 @@
 				console.error err
 				if cb? then cb!
 
-		more() {
+		this.more = () => {
 			if @more-loading or @is-loading or this.refs.timeline.posts.length == 0
 				return
 			this.more-loading = true
@@ -99,12 +99,12 @@
 			.catch (err) =>
 				console.error err
 
-		on-scroll() {
+		this.on-scroll = () => {
 			current = window.scroll-y + window.inner-height
 			if current > document.body.offset-height - 8
 				@more!
 
-		set-mode(mode) {
+		this.set-mode = (mode) => {
 			@update do
 				mode: mode
 			@fetch!
diff --git a/src/web/app/desktop/tags/home-widgets/notifications.tag b/src/web/app/desktop/tags/home-widgets/notifications.tag
index 4ed7f63782..12520e95a3 100644
--- a/src/web/app/desktop/tags/home-widgets/notifications.tag
+++ b/src/web/app/desktop/tags/home-widgets/notifications.tag
@@ -43,7 +43,7 @@
 
 	</style>
 	<script>
-		settings() {
+		this.settings = () => {
 			w = riot.mount document.body.appendChild document.createElement 'mk-settings-window' .0
 			w.switch 'notification' 
 	</script>
diff --git a/src/web/app/desktop/tags/home-widgets/photo-stream.tag b/src/web/app/desktop/tags/home-widgets/photo-stream.tag
index 9b7756108e..f7a80f40a9 100644
--- a/src/web/app/desktop/tags/home-widgets/photo-stream.tag
+++ b/src/web/app/desktop/tags/home-widgets/photo-stream.tag
@@ -77,7 +77,7 @@
 		this.on('unmount', () => {
 			@stream.off 'drive_file_created' this.on-stream-drive-file-created
 
-		on-stream-drive-file-created(file) {
+		this.on-stream-drive-file-created = (file) => {
 			if /^image\/.+$/.test file.type
 				@images.unshift file
 				if @images.length > 9
diff --git a/src/web/app/desktop/tags/home-widgets/profile.tag b/src/web/app/desktop/tags/home-widgets/profile.tag
index 3cff6b682c..72b2c18c38 100644
--- a/src/web/app/desktop/tags/home-widgets/profile.tag
+++ b/src/web/app/desktop/tags/home-widgets/profile.tag
@@ -46,10 +46,10 @@
 		this.mixin('update-avatar');
 		this.mixin('update-banner');
 
-		set-avatar() {
+		this.set-avatar = () => {
 			@update-avatar this.I
 
-		set-banner() {
+		this.set-banner = () => {
 			@update-banner this.I
 	</script>
 </mk-profile-home-widget>
diff --git a/src/web/app/desktop/tags/home-widgets/rss-reader.tag b/src/web/app/desktop/tags/home-widgets/rss-reader.tag
index 6778ea3bbb..2ced342a43 100644
--- a/src/web/app/desktop/tags/home-widgets/rss-reader.tag
+++ b/src/web/app/desktop/tags/home-widgets/rss-reader.tag
@@ -78,7 +78,7 @@
 		this.on('unmount', () => {
 			clear-interval @clock
 
-		fetch() {
+		this.fetch = () => {
 			this.api CONFIG.url + '/api:rss' do
 				url: @url
 			.then (feed) =>
@@ -88,7 +88,7 @@
 			.catch (err) ->
 				console.error err
 
-		settings() {
+		this.settings = () => {
 			@NotImplementedException!
 	</script>
 </mk-rss-reader-home-widget>
diff --git a/src/web/app/desktop/tags/home-widgets/timeline.tag b/src/web/app/desktop/tags/home-widgets/timeline.tag
index 1fcf4ab572..dbeac5eaf8 100644
--- a/src/web/app/desktop/tags/home-widgets/timeline.tag
+++ b/src/web/app/desktop/tags/home-widgets/timeline.tag
@@ -46,8 +46,8 @@
 			@stream.on 'follow' this.on-stream-follow
 			@stream.on 'unfollow' this.on-stream-unfollow
 
-			document.add-event-listener 'keydown' this.on-document-keydown
-			window.add-event-listener 'scroll' this.on-scroll
+			document.addEventListener 'keydown' this.on-document-keydown
+			window.addEventListener 'scroll' this.on-scroll
 
 			@load =>
 				this.trigger('loaded');
@@ -57,16 +57,16 @@
 			@stream.off 'follow' this.on-stream-follow
 			@stream.off 'unfollow' this.on-stream-unfollow
 
-			document.remove-event-listener 'keydown' this.on-document-keydown
-			window.remove-event-listener 'scroll' this.on-scroll
+			document.removeEventListener 'keydown' this.on-document-keydown
+			window.removeEventListener 'scroll' this.on-scroll
 
-		on-document-keydown(e) {
+		this.on-document-keydown = (e) => {
 			tag = e.target.tag-name.to-lower-case!
 			if tag != 'input' and tag != 'textarea' 
 				if e.which == 84 // t
 					this.refs.timeline.focus();
 
-		load(cb) {
+		this.load = (cb) => {
 			this.api 'posts/timeline' 
 			.then (posts) =>
 				this.is-loading = false
@@ -78,7 +78,7 @@
 				console.error err
 				if cb? then cb!
 
-		more() {
+		this.more = () => {
 			if @more-loading or @is-loading or this.refs.timeline.posts.length == 0
 				return
 			this.more-loading = true
@@ -92,18 +92,18 @@
 			.catch (err) =>
 				console.error err
 
-		on-stream-post(post) {
+		this.on-stream-post = (post) => {
 			this.is-empty = false
 			this.update();
 			this.refs.timeline.add-post post
 
-		on-stream-follow() {
+		this.on-stream-follow = () => {
 			@load!
 
-		on-stream-unfollow() {
+		this.on-stream-unfollow = () => {
 			@load!
 
-		on-scroll() {
+		this.on-scroll = () => {
 			current = window.scroll-y + window.inner-height
 			if current > document.body.offset-height - 8
 				@more!
diff --git a/src/web/app/desktop/tags/home-widgets/tips.tag b/src/web/app/desktop/tags/home-widgets/tips.tag
index c28514bbf2..08e1b1737e 100644
--- a/src/web/app/desktop/tags/home-widgets/tips.tag
+++ b/src/web/app/desktop/tags/home-widgets/tips.tag
@@ -48,11 +48,11 @@
 		this.on('unmount', () => {
 			clear-interval @clock
 
-		set() {
+		this.set = () => {
 			this.refs.text.innerHTML = @tips[Math.floor Math.random! * @tips.length]
 			this.update();
 
-		change() {
+		this.change = () => {
 			Velocity this.refs.tip, {
 				opacity: 0
 			} {
diff --git a/src/web/app/desktop/tags/home-widgets/user-recommendation.tag b/src/web/app/desktop/tags/home-widgets/user-recommendation.tag
index b2ec4ba888..f2a8a7476d 100644
--- a/src/web/app/desktop/tags/home-widgets/user-recommendation.tag
+++ b/src/web/app/desktop/tags/home-widgets/user-recommendation.tag
@@ -128,7 +128,7 @@
 		this.on('unmount', () => {
 			clear-interval @clock
 
-		fetch(quiet = false) {
+		this.fetch = (quiet = false) => {
 			this.loading = true
 			this.users = null
 			if not quiet then this.update();
@@ -142,7 +142,7 @@
 			.catch (err, text-status) ->
 				console.error err
 
-		refresh() {
+		this.refresh = () => {
 			if @users.length < @limit
 				this.page = 0
 			else
diff --git a/src/web/app/desktop/tags/image-dialog.tag b/src/web/app/desktop/tags/image-dialog.tag
index ae42a968bd..9a8a0e3b75 100644
--- a/src/web/app/desktop/tags/image-dialog.tag
+++ b/src/web/app/desktop/tags/image-dialog.tag
@@ -53,7 +53,7 @@
 			// easing: 'ease-out' 
 			#}
 
-		close() {
+		this.close = () => {
 			Velocity this.root, {
 				opacity: 0
 			} {
diff --git a/src/web/app/desktop/tags/images-viewer.tag b/src/web/app/desktop/tags/images-viewer.tag
index 7d552bc9ff..84190d34db 100644
--- a/src/web/app/desktop/tags/images-viewer.tag
+++ b/src/web/app/desktop/tags/images-viewer.tag
@@ -29,7 +29,7 @@
 		this.images = this.opts.images
 		this.image = @images.0
 
-		mousemove(e) {
+		this.mousemove = (e) => {
 			rect = this.refs.view.get-bounding-client-rect!
 			mouse-x = e.client-x - rect.left
 			mouse-y = e.client-y - rect.top
@@ -37,7 +37,7 @@
 			yp = mouse-y / this.refs.view.offset-height * 100
 			this.refs.view.style.background-position = xp + '% ' + yp + '%'
 
-		click() {
+		this.click = () => {
 			dialog = document.body.appendChild document.createElement 'mk-image-dialog' 
 			riot.mount dialog, do
 				image: @image
diff --git a/src/web/app/desktop/tags/input-dialog.tag b/src/web/app/desktop/tags/input-dialog.tag
index c2cf093304..b5aefcd164 100644
--- a/src/web/app/desktop/tags/input-dialog.tag
+++ b/src/web/app/desktop/tags/input-dialog.tag
@@ -139,16 +139,16 @@
 			this.refs.window.on('closed', () => {
 				this.unmount();
 
-		cancel() {
+		this.cancel = () => {
 			this.done = false
 			this.refs.window.close!
 
-		ok() {
+		this.ok = () => {
 			if not @allow-empty and @text.value == '' then return
 			this.done = true
 			this.refs.window.close!
 
-		on-keydown(e) {
+		this.on-keydown = (e) => {
 			if e.which == 13 // Enter
 				e.preventDefault();
 				e.stopPropagation();
diff --git a/src/web/app/desktop/tags/notifications.tag b/src/web/app/desktop/tags/notifications.tag
index 7ef13ad7eb..39a33e4102 100644
--- a/src/web/app/desktop/tags/notifications.tag
+++ b/src/web/app/desktop/tags/notifications.tag
@@ -199,7 +199,7 @@
 		this.on('unmount', () => {
 			@stream.off 'notification' this.on-notification
 
-		on-notification(notification) {
+		this.on-notification = (notification) => {
 			@notifications.unshift notification
 			this.update();
 
diff --git a/src/web/app/desktop/tags/pages/entrance.tag b/src/web/app/desktop/tags/pages/entrance.tag
index 227aec3885..486f83f9dd 100644
--- a/src/web/app/desktop/tags/pages/entrance.tag
+++ b/src/web/app/desktop/tags/pages/entrance.tag
@@ -65,15 +65,15 @@
 	<script>
 		this.mode = 'signin' 
 
-		signup() {
+		this.signup = () => {
 			this.mode = 'signup' 
 			this.update();
 
-		signin() {
+		this.signin = () => {
 			this.mode = 'signin' 
 			this.update();
 
-		introduction() {
+		this.introduction = () => {
 			this.mode = 'introduction' 
 			this.update();
 	</script>
diff --git a/src/web/app/desktop/tags/pages/entrance/signin.tag b/src/web/app/desktop/tags/pages/entrance/signin.tag
index 67a449a73d..b620c88b88 100644
--- a/src/web/app/desktop/tags/pages/entrance/signin.tag
+++ b/src/web/app/desktop/tags/pages/entrance/signin.tag
@@ -124,7 +124,7 @@
 				@update do
 					user: user
 
-		introduction() {
+		this.introduction = () => {
 			this.parent.introduction!
 	</script>
 </mk-entrance-signin>
diff --git a/src/web/app/desktop/tags/pages/home.tag b/src/web/app/desktop/tags/pages/home.tag
index 0f0bc4e378..3dd0b69d83 100644
--- a/src/web/app/desktop/tags/pages/home.tag
+++ b/src/web/app/desktop/tags/pages/home.tag
@@ -28,18 +28,18 @@
 			document.title = 'Misskey'
 			this.Progress.start();
 			@stream.on 'post' this.on-stream-post
-			document.add-event-listener 'visibilitychange' @window-on-visibilitychange, false
+			document.addEventListener 'visibilitychange' @window-on-visibilitychange, false
 
 		this.on('unmount', () => {
 			@stream.off 'post' this.on-stream-post
-			document.remove-event-listener 'visibilitychange' @window-on-visibilitychange
+			document.removeEventListener 'visibilitychange' @window-on-visibilitychange
 
-		on-stream-post(post) {
+		this.on-stream-post = (post) => {
 			if document.hidden and post.user_id !== this.I.id
 				@unread-count++
 				document.title = '(' + @unread-count + ') ' + @get-post-summary post
 
-		window-on-visibilitychange() {
+		this.window-on-visibilitychange = () => {
 			if !document.hidden
 				this.unread-count = 0
 				document.title = 'Misskey'
diff --git a/src/web/app/desktop/tags/post-detail-sub.tag b/src/web/app/desktop/tags/post-detail-sub.tag
index ccb475c768..1a6dbe0699 100644
--- a/src/web/app/desktop/tags/post-detail-sub.tag
+++ b/src/web/app/desktop/tags/post-detail-sub.tag
@@ -123,7 +123,7 @@
 					if e.tag-name == 'MK-URL' 
 						riot.mount e
 
-		like() {
+		this.like = () => {
 			if @post.is_liked
 				this.api 'posts/likes/delete' do
 					post_id: @post.id
diff --git a/src/web/app/desktop/tags/post-detail.tag b/src/web/app/desktop/tags/post-detail.tag
index 0443ff8836..c835521ad5 100644
--- a/src/web/app/desktop/tags/post-detail.tag
+++ b/src/web/app/desktop/tags/post-detail.tag
@@ -398,17 +398,17 @@
 
 				this.update();
 
-		reply() {
+		this.reply = () => {
 			form = document.body.appendChild document.createElement 'mk-post-form-window' 
 			riot.mount form, do
 				reply: @p
 
-		repost() {
+		this.repost = () => {
 			form = document.body.appendChild document.createElement 'mk-repost-form-window' 
 			riot.mount form, do
 				post: @p
 
-		like() {
+		this.like = () => {
 			if @p.is_liked
 				this.api 'posts/likes/delete' do
 					post_id: @p.id
@@ -422,7 +422,7 @@
 					@p.is_liked = true
 					this.update();
 
-		load-context() {
+		this.load-context = () => {
 			this.loading-context = true
 
 			// Get context
diff --git a/src/web/app/desktop/tags/post-form.tag b/src/web/app/desktop/tags/post-form.tag
index b1c06143bc..d49feba144 100644
--- a/src/web/app/desktop/tags/post-form.tag
+++ b/src/web/app/desktop/tags/post-form.tag
@@ -335,16 +335,16 @@
 		this.on('unmount', () => {
 			@autocomplete.detach!
 
-		focus() {
+		this.focus = () => {
 			this.refs.text.focus();
 
-		clear() {
+		this.clear = () => {
 			this.refs.text.value = ''
 			this.files = []
 			this.trigger('change-files');
 			this.update();
 
-		ondragover(e) {
+		this.ondragover = (e) => {
 			e.stopPropagation();
 			this.draghover = true
 			// ドラッグされてきたものがファイルだったら
@@ -354,13 +354,13 @@
 				e.dataTransfer.dropEffect = 'move' 
 			return false
 
-		ondragenter(e) {
+		this.ondragenter = (e) => {
 			this.draghover = true
 
-		ondragleave(e) {
+		this.ondragleave = (e) => {
 			this.draghover = false
 
-		ondrop(e) {
+		this.ondrop = (e) => {
 			e.preventDefault();
 			e.stopPropagation();
 			this.draghover = false
@@ -388,11 +388,11 @@
 
 			return false
 
-		onkeydown(e) {
+		this.onkeydown = (e) => {
 			if (e.which == 10 || e.which == 13) && (e.ctrlKey || e.meta-key)
 				@post!
 
-		onpaste(e) {
+		this.onpaste = (e) => {
 			data = e.clipboardData
 			items = data.items
 			for i from 0 to items.length - 1
@@ -401,26 +401,26 @@
 					| 'file' =>
 						@upload item.getAsFile();
 
-		select-file() {
+		this.select-file = () => {
 			this.refs.file.click!
 
-		select-file-from-drive() {
+		this.select-file-from-drive = () => {
 			browser = document.body.appendChild document.createElement 'mk-select-file-from-drive-window' 
 			i = riot.mount browser, do
 				multiple: true
 			i[0].one 'selected' (files) =>
 				files.for-each @add-file
 
-		change-file() {
+		this.change-file = () => {
 			files = this.refs.file.files
 			for i from 0 to files.length - 1
 				file = files.item i
 				@upload file
 
-		upload(file) {
+		this.upload = (file) => {
 			this.refs.uploader.upload file
 
-		add-file(file) {
+		this.add-file = (file) => {
 			file._remove = =>
 				this.files = this.files.filter (x) -> x.id != file.id
 				this.trigger 'change-files' this.files
@@ -430,14 +430,14 @@
 			this.trigger 'change-files' this.files
 			this.update();
 
-		add-poll() {
+		this.add-poll = () => {
 			this.poll = true
 
-		on-poll-destroyed() {
+		this.on-poll-destroyed = () => {
 			@update do
 				poll: false
 
-		post(e) {
+		this.post = (e) => {
 			this.wait = true
 
 			files = if this.files? and this.files.length > 0
@@ -459,7 +459,7 @@
 				this.wait = false
 				this.update();
 
-		cat() {
+		this.cat = () => {
 			this.refs.text.value = this.refs.text.value + get-cat!
 	</script>
 </mk-post-form>
diff --git a/src/web/app/desktop/tags/progress-dialog.tag b/src/web/app/desktop/tags/progress-dialog.tag
index bb5dea8b43..da0ed16d78 100644
--- a/src/web/app/desktop/tags/progress-dialog.tag
+++ b/src/web/app/desktop/tags/progress-dialog.tag
@@ -83,12 +83,12 @@
 			this.refs.window.on('closed', () => {
 				this.unmount();
 
-		update-progress(value, max) {
+		this.update-progress = (value, max) => {
 			this.value = parse-int value, 10
 			this.max = parse-int max, 10
 			this.update();
 
-		close() {
+		this.close = () => {
 			this.refs.window.close!
 	</script>
 </mk-progress-dialog>
diff --git a/src/web/app/desktop/tags/repost-form-window.tag b/src/web/app/desktop/tags/repost-form-window.tag
index d66f98bb85..7af67094b0 100644
--- a/src/web/app/desktop/tags/repost-form-window.tag
+++ b/src/web/app/desktop/tags/repost-form-window.tag
@@ -12,7 +12,7 @@
 
 	</style>
 	<script>
-		on-document-keydown(e) {
+		this.on-document-keydown = (e) => {
 			tag = e.target.tag-name.to-lower-case!
 			if tag != 'input' and tag != 'textarea' 
 				if e.which == 27 // Esc
@@ -25,12 +25,12 @@
 			this.refs.window.refs.form.on('posted', () => {
 				this.refs.window.close!
 
-			document.add-event-listener 'keydown' this.on-document-keydown
+			document.addEventListener 'keydown' this.on-document-keydown
 
 			this.refs.window.on('closed', () => {
 				this.unmount();
 
 		this.on('unmount', () => {
-			document.remove-event-listener 'keydown' this.on-document-keydown
+			document.removeEventListener 'keydown' this.on-document-keydown
 	</script>
 </mk-repost-form-window>
diff --git a/src/web/app/desktop/tags/repost-form.tag b/src/web/app/desktop/tags/repost-form.tag
index 58ef564bac..319b42dd01 100644
--- a/src/web/app/desktop/tags/repost-form.tag
+++ b/src/web/app/desktop/tags/repost-form.tag
@@ -120,10 +120,10 @@
 		this.wait = false
 		this.quote = false
 
-		cancel() {
+		this.cancel = () => {
 			this.trigger('cancel');
 
-		ok() {
+		this.ok = () => {
 			this.wait = true
 			this.api 'posts/create' do
 				repost_id: this.opts.post.id
@@ -138,7 +138,7 @@
 				this.wait = false
 				this.update();
 
-		onquote() {
+		this.onquote = () => {
 			this.quote = true
 	</script>
 </mk-repost-form>
diff --git a/src/web/app/desktop/tags/search-posts.tag b/src/web/app/desktop/tags/search-posts.tag
index a61a0a0614..a450e8a02c 100644
--- a/src/web/app/desktop/tags/search-posts.tag
+++ b/src/web/app/desktop/tags/search-posts.tag
@@ -38,8 +38,8 @@
 		this.page = 0
 
 		this.on('mount', () => {
-			document.add-event-listener 'keydown' this.on-document-keydown
-			window.add-event-listener 'scroll' this.on-scroll
+			document.addEventListener 'keydown' this.on-document-keydown
+			window.addEventListener 'scroll' this.on-scroll
 
 			this.api 'posts/search' do
 				query: @query
@@ -53,16 +53,16 @@
 				console.error err
 
 		this.on('unmount', () => {
-			document.remove-event-listener 'keydown' this.on-document-keydown
-			window.remove-event-listener 'scroll' this.on-scroll
+			document.removeEventListener 'keydown' this.on-document-keydown
+			window.removeEventListener 'scroll' this.on-scroll
 
-		on-document-keydown(e) {
+		this.on-document-keydown = (e) => {
 			tag = e.target.tag-name.to-lower-case!
 			if tag != 'input' and tag != 'textarea' 
 				if e.which == 84 // t
 					this.refs.timeline.focus();
 
-		more() {
+		this.more = () => {
 			if @more-loading or @is-loading or @timeline.posts.length == 0
 				return
 			this.more-loading = true
@@ -78,7 +78,7 @@
 			.catch (err) =>
 				console.error err
 
-		on-scroll() {
+		this.on-scroll = () => {
 			current = window.scroll-y + window.inner-height
 			if current > document.body.offset-height - 16 // 遊び
 				@more!
diff --git a/src/web/app/desktop/tags/select-file-from-drive-window.tag b/src/web/app/desktop/tags/select-file-from-drive-window.tag
index c8fc02d223..6979a55211 100644
--- a/src/web/app/desktop/tags/select-file-from-drive-window.tag
+++ b/src/web/app/desktop/tags/select-file-from-drive-window.tag
@@ -148,13 +148,13 @@
 			this.refs.window.on('closed', () => {
 				this.unmount();
 
-		close() {
+		this.close = () => {
 			this.refs.window.close!
 
-		upload() {
+		this.upload = () => {
 			this.refs.window.refs.browser.select-local-file!
 
-		ok() {
+		this.ok = () => {
 			this.trigger 'selected' this.file
 			this.refs.window.close!
 	</script>
diff --git a/src/web/app/desktop/tags/set-avatar-suggestion.tag b/src/web/app/desktop/tags/set-avatar-suggestion.tag
index e398a6ed29..ba44a7a33d 100644
--- a/src/web/app/desktop/tags/set-avatar-suggestion.tag
+++ b/src/web/app/desktop/tags/set-avatar-suggestion.tag
@@ -34,10 +34,10 @@
 		this.mixin('i');
 		this.mixin('update-avatar');
 
-		set() {
+		this.set = () => {
 			@update-avatar this.I
 
-		close(e) {
+		this.close = (e) => {
 			e.preventDefault();
 			e.stopPropagation();
 			this.unmount();
diff --git a/src/web/app/desktop/tags/set-banner-suggestion.tag b/src/web/app/desktop/tags/set-banner-suggestion.tag
index 73c67a02bd..fa735e4e42 100644
--- a/src/web/app/desktop/tags/set-banner-suggestion.tag
+++ b/src/web/app/desktop/tags/set-banner-suggestion.tag
@@ -34,10 +34,10 @@
 		this.mixin('i');
 		this.mixin('update-banner');
 
-		set() {
+		this.set = () => {
 			@update-banner this.I
 
-		close(e) {
+		this.close = (e) => {
 			e.preventDefault();
 			e.stopPropagation();
 			this.unmount();
diff --git a/src/web/app/desktop/tags/settings-window.tag b/src/web/app/desktop/tags/settings-window.tag
index 4ffc5f2250..89219fccf8 100644
--- a/src/web/app/desktop/tags/settings-window.tag
+++ b/src/web/app/desktop/tags/settings-window.tag
@@ -19,7 +19,7 @@
 			this.refs.window.on('closed', () => {
 				this.unmount();
 
-		close() {
+		this.close = () => {
 			this.refs.window.close!
 	</script>
 </mk-settings-window>
diff --git a/src/web/app/desktop/tags/settings.tag b/src/web/app/desktop/tags/settings.tag
index e67a1b11a6..e4a83738e6 100644
--- a/src/web/app/desktop/tags/settings.tag
+++ b/src/web/app/desktop/tags/settings.tag
@@ -205,13 +205,13 @@
 
 		this.page = 'account' 
 
-		set-page(page) {
+		this.set-page = (page) => {
 			this.page = page
 
-		avatar() {
+		this.avatar = () => {
 			@update-avatar this.I
 
-		update-account() {
+		this.update-account = () => {
 			this.api 'i/update' do
 				name: this.refs.account-name.value
 				location: this.refs.account-location.value
@@ -222,19 +222,19 @@
 			.catch (err) =>
 				console.error err
 
-		update-cache() {
+		this.update-cache = () => {
 			this.I.data.cache = !this.I.data.cache
 			this.api 'i/appdata/set' do
 				data: JSON.stringify do
 					cache: this.I.data.cache
 
-		update-debug() {
+		this.update-debug = () => {
 			this.I.data.debug = !this.I.data.debug
 			this.api 'i/appdata/set' do
 				data: JSON.stringify do
 					debug: this.I.data.debug
 
-		update-nya() {
+		this.update-nya = () => {
 			this.I.data.nya = !this.I.data.nya
 			this.api 'i/appdata/set' do
 				data: JSON.stringify do
diff --git a/src/web/app/desktop/tags/timeline-post.tag b/src/web/app/desktop/tags/timeline-post.tag
index ea1bed257b..5efc050638 100644
--- a/src/web/app/desktop/tags/timeline-post.tag
+++ b/src/web/app/desktop/tags/timeline-post.tag
@@ -349,17 +349,17 @@
 						riot.mount @preview, do
 							url: t.content
 
-		reply() {
+		this.reply = () => {
 			form = document.body.appendChild document.createElement 'mk-post-form-window' 
 			riot.mount form, do
 				reply: @p
 
-		repost() {
+		this.repost = () => {
 			form = document.body.appendChild document.createElement 'mk-repost-form-window' 
 			riot.mount form, do
 				post: @p
 
-		like() {
+		this.like = () => {
 			if @p.is_liked
 				this.api 'posts/likes/delete' do
 					post_id: @p.id
@@ -373,11 +373,11 @@
 					@p.is_liked = true
 					this.update();
 
-		toggle-detail() {
+		this.toggle-detail = () => {
 			this.is-detail-opened = !@is-detail-opened
 			this.update();
 
-		on-key-down(e) {
+		this.on-key-down = (e) => {
 			should-be-cancel = true
 			switch
 			| e.which == 38 or e.which == 74 or (e.which == 9 and e.shift-key) => // ↑, j or Shift+Tab
diff --git a/src/web/app/desktop/tags/timeline.tag b/src/web/app/desktop/tags/timeline.tag
index 5967c2efdd..ebc6249c6b 100644
--- a/src/web/app/desktop/tags/timeline.tag
+++ b/src/web/app/desktop/tags/timeline.tag
@@ -46,24 +46,24 @@
 	<script>
 		this.posts = []
 
-		set-posts(posts) {
+		this.set-posts = (posts) => {
 			this.posts = posts
 			this.update();
 
-		prepend-posts(posts) {
+		this.prepend-posts = (posts) => {
 			posts.for-each (post) =>
 				@posts.push post
 				this.update();
 
-		add-post(post) {
+		this.add-post = (post) => {
 			@posts.unshift post
 			this.update();
 
-		clear() {
+		this.clear = () => {
 			this.posts = []
 			this.update();
 
-		focus() {
+		this.focus = () => {
 			this.root.children.0.focus();
 
 		this.on('update', () => {
@@ -73,7 +73,7 @@
 				post._date = date
 				post._datetext = month + '月 ' + date + '日'
 
-		tail() {
+		this.tail = () => {
 			@posts[@posts.length - 1]
 	</script>
 </mk-timeline>
diff --git a/src/web/app/desktop/tags/ui-header-account.tag b/src/web/app/desktop/tags/ui-header-account.tag
index fa3f60a618..e6ededc750 100644
--- a/src/web/app/desktop/tags/ui-header-account.tag
+++ b/src/web/app/desktop/tags/ui-header-account.tag
@@ -167,37 +167,37 @@
 		this.on('before-unmount', () => {
 			@close!
 
-		toggle() {
+		this.toggle = () => {
 			if @is-open
 				@close!
 			else
 				@open!
 
-		open() {
+		this.open = () => {
 			this.is-open = true
 			this.update();
 			all = document.query-selector-all 'body *'
 			Array.prototype.for-each.call all, (el) =>
-				el.add-event-listener 'mousedown' @mousedown
+				el.addEventListener 'mousedown' @mousedown
 
-		close() {
+		this.close = () => {
 			this.is-open = false
 			this.update();
 			all = document.query-selector-all 'body *'
 			Array.prototype.for-each.call all, (el) =>
-				el.remove-event-listener 'mousedown' @mousedown
+				el.removeEventListener 'mousedown' @mousedown
 
-		mousedown(e) {
+		this.mousedown = (e) => {
 			e.preventDefault();
 			if (!contains this.root, e.target) and (this.root != e.target)
 				@close!
 			return false
 
-		drive() {
+		this.drive = () => {
 			@close!
 			riot.mount document.body.appendChild document.createElement 'mk-drive-browser-window' 
 
-		settings() {
+		this.settings = () => {
 			@close!
 			riot.mount document.body.appendChild document.createElement 'mk-settings-window' 
 
diff --git a/src/web/app/desktop/tags/ui-header-clock.tag b/src/web/app/desktop/tags/ui-header-clock.tag
index 339951fb6f..5b42cefbbf 100644
--- a/src/web/app/desktop/tags/ui-header-clock.tag
+++ b/src/web/app/desktop/tags/ui-header-clock.tag
@@ -58,7 +58,7 @@
 
 	</style>
 	<script>
-		draw() {
+		this.draw = () => {
 			now = new Date!
 
 			yyyy = now.get-full-year!
diff --git a/src/web/app/desktop/tags/ui-header-nav.tag b/src/web/app/desktop/tags/ui-header-nav.tag
index 8f710600f9..88607d6a5b 100644
--- a/src/web/app/desktop/tags/ui-header-nav.tag
+++ b/src/web/app/desktop/tags/ui-header-nav.tag
@@ -98,15 +98,15 @@
 				@stream.off 'read_all_messaging_messages' this.on-read-all-messaging-messages
 				@stream.off 'unread_messaging_message' this.on-unread-messaging-message
 
-			on-read-all-messaging-messages() {
+			this.on-read-all-messaging-messages = () => {
 				this.has-unread-messaging-messages = false
 				this.update();
 
-			on-unread-messaging-message() {
+			this.on-unread-messaging-message = () => {
 				this.has-unread-messaging-messages = true
 				this.update();
 
-			messaging() {
+			this.messaging = () => {
 				riot.mount document.body.appendChild document.createElement 'mk-messaging-window' 
 		</script>
 	</ul>
diff --git a/src/web/app/desktop/tags/ui-header-notifications.tag b/src/web/app/desktop/tags/ui-header-notifications.tag
index 1768f915e5..0a355e022a 100644
--- a/src/web/app/desktop/tags/ui-header-notifications.tag
+++ b/src/web/app/desktop/tags/ui-header-notifications.tag
@@ -77,27 +77,27 @@
 	<script>
 		this.is-open = false
 
-		toggle() {
+		this.toggle = () => {
 			if @is-open
 				@close!
 			else
 				@open!
 
-		open() {
+		this.open = () => {
 			this.is-open = true
 			this.update();
 			all = document.query-selector-all 'body *'
 			Array.prototype.for-each.call all, (el) =>
-				el.add-event-listener 'mousedown' @mousedown
+				el.addEventListener 'mousedown' @mousedown
 
-		close() {
+		this.close = () => {
 			this.is-open = false
 			this.update();
 			all = document.query-selector-all 'body *'
 			Array.prototype.for-each.call all, (el) =>
-				el.remove-event-listener 'mousedown' @mousedown
+				el.removeEventListener 'mousedown' @mousedown
 
-		mousedown(e) {
+		this.mousedown = (e) => {
 			e.preventDefault();
 			if (!contains this.root, e.target) and (this.root != e.target)
 				@close!
diff --git a/src/web/app/desktop/tags/ui-header-post-button.tag b/src/web/app/desktop/tags/ui-header-post-button.tag
index 3d391ed2e9..3f339beb63 100644
--- a/src/web/app/desktop/tags/ui-header-post-button.tag
+++ b/src/web/app/desktop/tags/ui-header-post-button.tag
@@ -35,7 +35,7 @@
 
 	</style>
 	<script>
-		post(e) {
+		this.post = (e) => {
 			this.parent.parent.open-post-form!
 	</script>
 </mk-ui-header-post-button>
diff --git a/src/web/app/desktop/tags/ui-header-search.tag b/src/web/app/desktop/tags/ui-header-search.tag
index 69d2dd7324..cc8ca2ae02 100644
--- a/src/web/app/desktop/tags/ui-header-search.tag
+++ b/src/web/app/desktop/tags/ui-header-search.tag
@@ -34,7 +34,7 @@
 	<script>
 		this.mixin('page');
 
-		onsubmit(e) {
+		this.onsubmit = (e) => {
 			e.preventDefault();
 			@page '/search:' + this.refs.q.value
 	</script>
diff --git a/src/web/app/desktop/tags/ui.tag b/src/web/app/desktop/tags/ui.tag
index 1ecb0f5706..1e2cba35be 100644
--- a/src/web/app/desktop/tags/ui.tag
+++ b/src/web/app/desktop/tags/ui.tag
@@ -14,20 +14,20 @@
 	<script>
 		this.mixin('i');
 
-		open-post-form() {
+		this.open-post-form = () => {
 			riot.mount document.body.appendChild document.createElement 'mk-post-form-window' 
 
-		set-root-layout() {
+		this.set-root-layout = () => {
 			this.root.style.padding-top = this.refs.header.root.client-height + 'px' 
 
 		this.on('mount', () => {
 			@set-root-layout!
-			document.add-event-listener 'keydown' this.onkeydown
+			document.addEventListener 'keydown' this.onkeydown
 
 		this.on('unmount', () => {
-			document.remove-event-listener 'keydown' this.onkeydown
+			document.removeEventListener 'keydown' this.onkeydown
 
-		onkeydown(e) {
+		this.onkeydown = (e) => {
 			tag = e.target.tag-name.to-lower-case!
 			if tag != 'input' and tag != 'textarea' 
 				if e.which == 80 or e.which == 78 // p or n
diff --git a/src/web/app/desktop/tags/user-followers.tag b/src/web/app/desktop/tags/user-followers.tag
index 0ae29a2099..53c3c89858 100644
--- a/src/web/app/desktop/tags/user-followers.tag
+++ b/src/web/app/desktop/tags/user-followers.tag
@@ -11,7 +11,7 @@
 
 		this.user = this.opts.user
 
-		fetch(iknow, limit, cursor, cb) {
+		this.fetch = (iknow, limit, cursor, cb) => {
 			this.api 'users/followers' do
 				user_id: @user.id
 				iknow: iknow
diff --git a/src/web/app/desktop/tags/user-following.tag b/src/web/app/desktop/tags/user-following.tag
index f640ee7b62..a8f9ccb896 100644
--- a/src/web/app/desktop/tags/user-following.tag
+++ b/src/web/app/desktop/tags/user-following.tag
@@ -11,7 +11,7 @@
 
 		this.user = this.opts.user
 
-		fetch(iknow, limit, cursor, cb) {
+		this.fetch = (iknow, limit, cursor, cb) => {
 			this.api 'users/following' do
 				user_id: @user.id
 				iknow: iknow
diff --git a/src/web/app/desktop/tags/user-header.tag b/src/web/app/desktop/tags/user-header.tag
index a2ed28b4f8..ff37b334e2 100644
--- a/src/web/app/desktop/tags/user-header.tag
+++ b/src/web/app/desktop/tags/user-header.tag
@@ -111,16 +111,16 @@
 		this.user = this.opts.user
 
 		this.on('mount', () => {
-			window.add-event-listener 'load' @scroll
-			window.add-event-listener 'scroll' @scroll
-			window.add-event-listener 'resize' @scroll
+			window.addEventListener 'load' @scroll
+			window.addEventListener 'scroll' @scroll
+			window.addEventListener 'resize' @scroll
 
 		this.on('unmount', () => {
-			window.remove-event-listener 'load' @scroll
-			window.remove-event-listener 'scroll' @scroll
-			window.remove-event-listener 'resize' @scroll
+			window.removeEventListener 'load' @scroll
+			window.removeEventListener 'scroll' @scroll
+			window.removeEventListener 'resize' @scroll
 
-		scroll() {
+		this.scroll = () => {
 			top = window.scroll-y
 			height = 280px
 
@@ -131,7 +131,7 @@
 			if blur <= 10
 				this.refs.banner.style.filter = 'blur(' + blur + 'px)'
 
-		on-update-banner() {
+		this.on-update-banner = () => {
 			if not @SIGNIN or this.I.id != @user.id
 				return
 
diff --git a/src/web/app/desktop/tags/user-preview.tag b/src/web/app/desktop/tags/user-preview.tag
index d17f7557d2..00da1d8f11 100644
--- a/src/web/app/desktop/tags/user-preview.tag
+++ b/src/web/app/desktop/tags/user-preview.tag
@@ -130,7 +130,7 @@
 				easing: 'ease-out' 
 			}
 
-		close() {
+		this.close = () => {
 			Velocity this.root, {
 				opacity: 0
 				'margin-top': '-8px' 
diff --git a/src/web/app/desktop/tags/user-profile.tag b/src/web/app/desktop/tags/user-profile.tag
index a94f50c7bf..b613aa968a 100644
--- a/src/web/app/desktop/tags/user-profile.tag
+++ b/src/web/app/desktop/tags/user-profile.tag
@@ -86,12 +86,12 @@
 
 		this.user = this.opts.user
 
-		show-following() {
+		this.show-following = () => {
 			window = document.body.appendChild document.createElement 'mk-user-following-window' 
 			riot.mount window, do
 				user: @user
 
-		show-followers() {
+		this.show-followers = () => {
 			window = document.body.appendChild document.createElement 'mk-user-followers-window' 
 			riot.mount window, do
 				user: @user
diff --git a/src/web/app/desktop/tags/user-timeline.tag b/src/web/app/desktop/tags/user-timeline.tag
index b8e39b7307..ab82b2677f 100644
--- a/src/web/app/desktop/tags/user-timeline.tag
+++ b/src/web/app/desktop/tags/user-timeline.tag
@@ -59,9 +59,9 @@
 		this.mode = 'default' 
 
 		this.on('mount', () => {
-			document.add-event-listener 'visibilitychange' @window-on-visibilitychange, false
-			document.add-event-listener 'keydown' this.on-document-keydown
-			window.add-event-listener 'scroll' this.on-scroll
+			document.addEventListener 'visibilitychange' @window-on-visibilitychange, false
+			document.addEventListener 'keydown' this.on-document-keydown
+			window.addEventListener 'scroll' this.on-scroll
 
 			@user-promise.then (user) =>
 				this.user = user
@@ -71,17 +71,17 @@
 					this.trigger('loaded');
 
 		this.on('unmount', () => {
-			document.remove-event-listener 'visibilitychange' @window-on-visibilitychange
-			document.remove-event-listener 'keydown' this.on-document-keydown
-			window.remove-event-listener 'scroll' this.on-scroll
+			document.removeEventListener 'visibilitychange' @window-on-visibilitychange
+			document.removeEventListener 'keydown' this.on-document-keydown
+			window.removeEventListener 'scroll' this.on-scroll
 
-		on-document-keydown(e) {
+		this.on-document-keydown = (e) => {
 			tag = e.target.tag-name.to-lower-case!
 			if tag != 'input' and tag != 'textarea' 
 				if e.which == 84 // t
 					this.refs.timeline.focus();
 
-		fetch(cb) {
+		this.fetch = (cb) => {
 			this.api 'users/posts' do
 				user_id: @user.id
 				with_replies: @mode == 'with-replies' 
@@ -95,7 +95,7 @@
 				console.error err
 				if cb? then cb!
 
-		more() {
+		this.more = () => {
 			if @more-loading or @is-loading or this.refs.timeline.posts.length == 0
 				return
 			this.more-loading = true
@@ -111,7 +111,7 @@
 			.catch (err) =>
 				console.error err
 
-		on-stream-post(post) {
+		this.on-stream-post = (post) => {
 			this.is-empty = false
 			this.update();
 			this.refs.timeline.add-post post
@@ -120,17 +120,17 @@
 				@unread-count++
 				document.title = '(' + @unread-count + ') ' + @get-post-summary post
 
-		window-on-visibilitychange() {
+		this.window-on-visibilitychange = () => {
 			if !document.hidden
 				this.unread-count = 0
 				document.title = 'Misskey'
 
-		on-scroll() {
+		this.on-scroll = () => {
 			current = window.scroll-y + window.inner-height
 			if current > document.body.offset-height - 16 // 遊び
 				@more!
 
-		set-mode(mode) {
+		this.set-mode = (mode) => {
 			@update do
 				mode: mode
 			@fetch!
diff --git a/src/web/app/desktop/tags/users-list.tag b/src/web/app/desktop/tags/users-list.tag
index af0f35d634..9fd1239526 100644
--- a/src/web/app/desktop/tags/users-list.tag
+++ b/src/web/app/desktop/tags/users-list.tag
@@ -100,7 +100,7 @@
 			@fetch =>
 				this.trigger('loaded');
 
-		fetch(cb) {
+		this.fetch = (cb) => {
 			this.fetching = true
 			this.update();
 			obj <~ this.opts.fetch do
@@ -113,7 +113,7 @@
 			this.update();
 			if cb? then cb!
 
-		more() {
+		this.more = () => {
 			this.more-fetching = true
 			this.update();
 			obj <~ this.opts.fetch do
@@ -125,7 +125,7 @@
 			this.more-fetching = false
 			this.update();
 
-		set-mode(mode) {
+		this.set-mode = (mode) => {
 			@update do
 				mode: mode
 
diff --git a/src/web/app/desktop/tags/window.tag b/src/web/app/desktop/tags/window.tag
index 71084f8b54..81011e9f50 100644
--- a/src/web/app/desktop/tags/window.tag
+++ b/src/web/app/desktop/tags/window.tag
@@ -207,17 +207,17 @@
 			this.refs.main.style.top = '15%' 
 			this.refs.main.style.left = (window.inner-width / 2) - (this.refs.main.offset-width / 2) + 'px' 
 
-			this.refs.header.add-event-listener 'contextmenu' (e) =>
+			this.refs.header.addEventListener 'contextmenu' (e) =>
 				e.preventDefault();
 
-			window.add-event-listener 'resize' this.on-browser-resize
+			window.addEventListener 'resize' this.on-browser-resize
 
 			@open!
 
 		this.on('unmount', () => {
-			window.remove-event-listener 'resize' this.on-browser-resize
+			window.removeEventListener 'resize' this.on-browser-resize
 
-		on-browser-resize() {
+		this.on-browser-resize = () => {
 			position = this.refs.main.get-bounding-client-rect!
 			browser-width = window.inner-width
 			browser-height = window.inner-height
@@ -236,7 +236,7 @@
 			if position.top + window-height > browser-height
 				this.refs.main.style.top = browser-height - window-height + 'px' 
 
-		open() {
+		this.open = () => {
 			this.trigger('opening');
 
 			@top!
@@ -270,7 +270,7 @@
 				this.trigger('opened');
 			, 300ms
 
-		close() {
+		this.close = () => {
 			this.trigger('closing');
 
 			if @is-modal
@@ -300,7 +300,7 @@
 			, 300ms
 
 		// 最前面へ移動します
-		top() {
+		this.top = () => {
 			z = 0
 
 			ws = document.query-selector-all 'mk-window' 
@@ -314,20 +314,20 @@
 				this.refs.main.style.z-index = z + 1
 				if @is-modal then this.refs.bg.style.z-index = z + 1
 
-		repel-move(e) {
+		this.repel-move = (e) => {
 			e.stopPropagation();
 			return true
 
-		bg-click() {
+		this.bg-click = () => {
 			if @can-close
 				@close!
 
-		on-body-mousedown(e) {
+		this.on-body-mousedown = (e) => {
 			@top!
 			true
 
 		// ヘッダー掴み時
-		on-header-mousedown(e) {
+		this.on-header-mousedown = (e) => {
 			e.preventDefault();
 
 			if not contains this.refs.main, document.active-element
@@ -369,7 +369,7 @@
 				this.refs.main.style.top = move-top + 'px' 
 
 		// 上ハンドル掴み時
-		on-top-handle-mousedown(e) {
+		this.on-top-handle-mousedown = (e) => {
 			e.preventDefault();
 
 			base = e.client-y
@@ -391,7 +391,7 @@
 					@apply-transform-top 0
 
 		// 右ハンドル掴み時
-		on-right-handle-mousedown(e) {
+		this.on-right-handle-mousedown = (e) => {
 			e.preventDefault();
 
 			base = e.client-x
@@ -411,7 +411,7 @@
 					@apply-transform-width browser-width - left
 
 		// 下ハンドル掴み時
-		on-bottom-handle-mousedown(e) {
+		this.on-bottom-handle-mousedown = (e) => {
 			e.preventDefault();
 
 			base = e.client-y
@@ -431,7 +431,7 @@
 					@apply-transform-height browser-height - top
 
 		// 左ハンドル掴み時
-		on-left-handle-mousedown(e) {
+		this.on-left-handle-mousedown = (e) => {
 			e.preventDefault();
 
 			base = e.client-x
@@ -453,55 +453,55 @@
 					@apply-transform-left 0
 
 		// 左上ハンドル掴み時
-		on-top-left-handle-mousedown(e) {
+		this.on-top-left-handle-mousedown = (e) => {
 			this.on-top-handle-mousedown e
 			this.on-left-handle-mousedown e
 
 		// 右上ハンドル掴み時
-		on-top-right-handle-mousedown(e) {
+		this.on-top-right-handle-mousedown = (e) => {
 			this.on-top-handle-mousedown e
 			this.on-right-handle-mousedown e
 
 		// 右下ハンドル掴み時
-		on-bottom-right-handle-mousedown(e) {
+		this.on-bottom-right-handle-mousedown = (e) => {
 			this.on-bottom-handle-mousedown e
 			this.on-right-handle-mousedown e
 
 		// 左下ハンドル掴み時
-		on-bottom-left-handle-mousedown(e) {
+		this.on-bottom-left-handle-mousedown = (e) => {
 			this.on-bottom-handle-mousedown e
 			this.on-left-handle-mousedown e
 
 		// 高さを適用
-		apply-transform-height(height) {
+		this.apply-transform-height = (height) => {
 			this.refs.main.style.height = height + 'px' 
 
 		// 幅を適用
-		apply-transform-width(width) {
+		this.apply-transform-width = (width) => {
 			this.refs.main.style.width = width + 'px' 
 
 		// Y座標を適用
-		apply-transform-top(top) {
+		this.apply-transform-top = (top) => {
 			this.refs.main.style.top = top + 'px' 
 
 		// X座標を適用
-		apply-transform-left(left) {
+		this.apply-transform-left = (left) => {
 			this.refs.main.style.left = left + 'px' 
 
 		function drag-listen fn
-			window.add-event-listener 'mousemove'  fn
-			window.add-event-listener 'mouseleave' drag-clear.bind null fn
-			window.add-event-listener 'mouseup'    drag-clear.bind null fn
+			window.addEventListener 'mousemove'  fn
+			window.addEventListener 'mouseleave' drag-clear.bind null fn
+			window.addEventListener 'mouseup'    drag-clear.bind null fn
 
 		function drag-clear fn
-			window.remove-event-listener 'mousemove'  fn
-			window.remove-event-listener 'mouseleave' drag-clear
-			window.remove-event-listener 'mouseup'    drag-clear
+			window.removeEventListener 'mousemove'  fn
+			window.removeEventListener 'mouseleave' drag-clear
+			window.removeEventListener 'mouseup'    drag-clear
 
-		ondragover(e) {
+		this.ondragover = (e) => {
 			e.dataTransfer.dropEffect = 'none' 
 
-		on-keydown(e) {
+		this.on-keydown = (e) => {
 			if e.which == 27 // Esc
 				if @can-close
 					e.preventDefault();
diff --git a/src/web/app/dev/tags/new-app-form.tag b/src/web/app/dev/tags/new-app-form.tag
index 84e099612a..2718bcd5d0 100644
--- a/src/web/app/dev/tags/new-app-form.tag
+++ b/src/web/app/dev/tags/new-app-form.tag
@@ -182,7 +182,7 @@
 
 		this.nid-state = null
 
-		on-change-nid() {
+		this.on-change-nid = () => {
 			nid = this.refs.nid.value
 
 			if nid == ''
@@ -215,7 +215,7 @@
 					this.nid-state = 'error' 
 					this.update();
 
-		onsubmit() {
+		this.onsubmit = () => {
 			name = this.refs.name.value
 			nid = this.refs.nid.value
 			description = this.refs.description.value
diff --git a/src/web/app/mobile/tags/drive-selector.tag b/src/web/app/mobile/tags/drive-selector.tag
index ce9bdd2b56..873c491542 100644
--- a/src/web/app/mobile/tags/drive-selector.tag
+++ b/src/web/app/mobile/tags/drive-selector.tag
@@ -63,11 +63,11 @@
 				this.files = files
 				this.update();
 
-		cancel() {
+		this.cancel = () => {
 			this.trigger('canceled');
 			this.unmount();
 
-		ok() {
+		this.ok = () => {
 			this.trigger 'selected' this.files
 			this.unmount();
 	</script>
diff --git a/src/web/app/mobile/tags/drive.tag b/src/web/app/mobile/tags/drive.tag
index ddaf600619..6daa50c26d 100644
--- a/src/web/app/mobile/tags/drive.tag
+++ b/src/web/app/mobile/tags/drive.tag
@@ -167,20 +167,20 @@
 			@stream.off 'drive_folder_created' this.on-stream-drive-folder-created
 			@stream.off 'drive_folder_updated' this.on-stream-drive-folder-updated
 
-		on-stream-drive-file-created(file) {
+		this.on-stream-drive-file-created = (file) => {
 			@add-file file, true
 
-		on-stream-drive-file-updated(file) {
+		this.on-stream-drive-file-updated = (file) => {
 			current = if this.folder? then this.folder.id else null
 			if current != file.folder_id
 				@remove-file file
 			else
 				@add-file file, true
 
-		on-stream-drive-folder-created(folder) {
+		this.on-stream-drive-folder-created = (folder) => {
 			@add-folder folder, true
 
-		on-stream-drive-folder-updated(folder) {
+		this.on-stream-drive-folder-updated = (folder) => {
 			current = if this.folder? then this.folder.id else null
 			if current != folder.parent_id
 				@remove-folder folder
@@ -190,10 +190,10 @@
 		@_move = (ev) =>
 			@move ev.item.folder
 
-		move(target-folder) {
+		this.move = (target-folder) => {
 			@cd target-folder
 
-		cd(target-folder, silent = false) {
+		this.cd = (target-folder, silent = false) => {
 			this.file = null
 
 			if target-folder? and typeof target-folder == 'object' 
@@ -226,7 +226,7 @@
 			.catch (err, text-status) ->
 				console.error err
 
-		add-folder(folder, unshift = false) {
+		this.add-folder = (folder, unshift = false) => {
 			current = if this.folder? then this.folder.id else null
 			if current != folder.parent_id
 				return
@@ -241,7 +241,7 @@
 
 			this.update();
 
-		add-file(file, unshift = false) {
+		this.add-file = (file, unshift = false) => {
 			current = if this.folder? then this.folder.id else null
 			if current != file.folder_id
 				return
@@ -259,19 +259,19 @@
 
 			this.update();
 
-		remove-folder(folder) {
+		this.remove-folder = (folder) => {
 			if typeof folder == 'object' 
 				folder = folder.id
 			this.folders = this.folders.filter (f) -> f.id != folder
 			this.update();
 
-		remove-file(file) {
+		this.remove-file = (file) => {
 			if typeof file == 'object' 
 				file = file.id
 			this.files = this.files.filter (f) -> f.id != file
 			this.update();
 
-		go-root() {
+		this.go-root = () => {
 			if this.folder != null or this.file != null
 				this.file = null
 				this.folder = null
@@ -280,7 +280,7 @@
 				this.trigger('move-root');
 				@load!
 
-		load() {
+		this.load = () => {
 			this.folders = []
 			this.files = []
 			this.more-folders = false
@@ -337,11 +337,11 @@
 					flag := true
 					this.trigger('load-mid');
 
-		choose-file(file) {
+		this.choose-file = (file) => {
 			if @is-select-mode
 				exist = @selected-files.some (f) => f.id == file.id
 				if exist
-					selected-files(@selected-files.filter (f) { f.id != file.id)
+					this.selected-files = (@selected-files.filter (f) => { f.id != file.id)
 				else
 					@selected-files.push file
 				this.update();
@@ -349,7 +349,7 @@
 			else
 				@cf file
 
-		cf(file, silent = false) {
+		this.cf = (file, silent = false) => {
 			if typeof file == 'object' 
 				file = file.id
 
diff --git a/src/web/app/mobile/tags/drive/file-viewer.tag b/src/web/app/mobile/tags/drive/file-viewer.tag
index eff41ab85f..5f1380ae80 100644
--- a/src/web/app/mobile/tags/drive/file-viewer.tag
+++ b/src/web/app/mobile/tags/drive/file-viewer.tag
@@ -188,7 +188,7 @@
 		this.file = this.opts.file
 		this.kind = this.file.type.split '/' .0
 
-		rename() {
+		this.rename = () => {
 			name = window.prompt '名前を変更' this.file.name
 			if name? and name != '' and name != this.file.name
 				this.api 'drive/files/update' do
diff --git a/src/web/app/mobile/tags/drive/file.tag b/src/web/app/mobile/tags/drive/file.tag
index c831349197..77b5b220ad 100644
--- a/src/web/app/mobile/tags/drive/file.tag
+++ b/src/web/app/mobile/tags/drive/file.tag
@@ -131,7 +131,7 @@
 		this.browser.on('change-selected', (selects) => {
 			this.is-selected = selects.some (f) => f.id == this.file.id
 
-		onclick() {
+		this.onclick = () => {
 			this.browser.choose-file this.file
 	</script>
 </mk-drive-file>
diff --git a/src/web/app/mobile/tags/drive/folder.tag b/src/web/app/mobile/tags/drive/folder.tag
index c536fed9d9..4c4727a308 100644
--- a/src/web/app/mobile/tags/drive/folder.tag
+++ b/src/web/app/mobile/tags/drive/folder.tag
@@ -40,7 +40,7 @@
 		this.browser = this.parent
 		this.folder = this.opts.folder
 
-		onclick() {
+		this.onclick = () => {
 			this.browser.move this.folder
 	</script>
 </mk-drive-folder>
diff --git a/src/web/app/mobile/tags/follow-button.tag b/src/web/app/mobile/tags/follow-button.tag
index 99936530c8..36447f3acd 100644
--- a/src/web/app/mobile/tags/follow-button.tag
+++ b/src/web/app/mobile/tags/follow-button.tag
@@ -69,17 +69,17 @@
 			@stream.off 'follow' this.on-stream-follow
 			@stream.off 'unfollow' this.on-stream-unfollow
 
-		on-stream-follow(user) {
+		this.on-stream-follow = (user) => {
 			if user.id == @user.id
 				this.user = user
 				this.update();
 
-		on-stream-unfollow(user) {
+		this.on-stream-unfollow = (user) => {
 			if user.id == @user.id
 				this.user = user
 				this.update();
 
-		onclick() {
+		this.onclick = () => {
 			this.wait = true
 			if @user.is_following
 				this.api 'following/delete' do
diff --git a/src/web/app/mobile/tags/home-timeline.tag b/src/web/app/mobile/tags/home-timeline.tag
index 98c3a08215..322ba8f932 100644
--- a/src/web/app/mobile/tags/home-timeline.tag
+++ b/src/web/app/mobile/tags/home-timeline.tag
@@ -25,19 +25,19 @@
 			@stream.off 'follow' this.on-stream-follow
 			@stream.off 'unfollow' this.on-stream-unfollow
 
-		more() {
+		this.more = () => {
 			this.api 'posts/timeline' do
 				max_id: this.refs.timeline.tail!.id
 
-		on-stream-post(post) {
+		this.on-stream-post = (post) => {
 			this.is-empty = false
 			this.update();
 			this.refs.timeline.add-post post
 
-		on-stream-follow() {
+		this.on-stream-follow = () => {
 			@fetch!
 
-		on-stream-unfollow() {
+		this.on-stream-unfollow = () => {
 			@fetch!
 	</script>
 </mk-home-timeline>
diff --git a/src/web/app/mobile/tags/images-viewer.tag b/src/web/app/mobile/tags/images-viewer.tag
index 6ff03ba637..ad02850e30 100644
--- a/src/web/app/mobile/tags/images-viewer.tag
+++ b/src/web/app/mobile/tags/images-viewer.tag
@@ -21,7 +21,7 @@
 		this.images = this.opts.images
 		this.image = @images.0
 
-		click() {
+		this.click = () => {
 			window.open @image.url
 	</script>
 </mk-images-viewer>
diff --git a/src/web/app/mobile/tags/notifications.tag b/src/web/app/mobile/tags/notifications.tag
index 59bcebaa40..9d665ec93e 100644
--- a/src/web/app/mobile/tags/notifications.tag
+++ b/src/web/app/mobile/tags/notifications.tag
@@ -79,7 +79,7 @@
 		this.on('unmount', () => {
 			@stream.off 'notification' this.on-notification
 
-		on-notification(notification) {
+		this.on-notification = (notification) => {
 			@notifications.unshift notification
 			this.update();
 
diff --git a/src/web/app/mobile/tags/page/entrance.tag b/src/web/app/mobile/tags/page/entrance.tag
index 3ec43f0f61..1197d0578e 100644
--- a/src/web/app/mobile/tags/page/entrance.tag
+++ b/src/web/app/mobile/tags/page/entrance.tag
@@ -45,15 +45,15 @@
 	<script>
 		this.mode = 'signin' 
 
-		signup() {
+		this.signup = () => {
 			this.mode = 'signup' 
 			this.update();
 
-		signin() {
+		this.signin = () => {
 			this.mode = 'signin' 
 			this.update();
 
-		introduction() {
+		this.introduction = () => {
 			this.mode = 'introduction' 
 			this.update();
 	</script>
diff --git a/src/web/app/mobile/tags/page/home.tag b/src/web/app/mobile/tags/page/home.tag
index cfa6d55dac..d46e834746 100644
--- a/src/web/app/mobile/tags/page/home.tag
+++ b/src/web/app/mobile/tags/page/home.tag
@@ -23,21 +23,21 @@
 			this.Progress.start();
 
 			@stream.on 'post' this.on-stream-post
-			document.add-event-listener 'visibilitychange' @window-on-visibilitychange, false
+			document.addEventListener 'visibilitychange' @window-on-visibilitychange, false
 
 			this.refs.ui.refs.home.on('loaded', () => {
 				this.Progress.done();
 
 		this.on('unmount', () => {
 			@stream.off 'post' this.on-stream-post
-			document.remove-event-listener 'visibilitychange' @window-on-visibilitychange
+			document.removeEventListener 'visibilitychange' @window-on-visibilitychange
 
-		on-stream-post(post) {
+		this.on-stream-post = (post) => {
 			if document.hidden and post.user_id !== this.I.id
 				@unread-count++
 				document.title = '(' + @unread-count + ') ' + @get-post-summary post
 
-		window-on-visibilitychange() {
+		this.window-on-visibilitychange = () => {
 			if !document.hidden
 				this.unread-count = 0
 				document.title = 'Misskey'
diff --git a/src/web/app/mobile/tags/post-detail.tag b/src/web/app/mobile/tags/post-detail.tag
index 7d19a96d54..9319cfe68e 100644
--- a/src/web/app/mobile/tags/post-detail.tag
+++ b/src/web/app/mobile/tags/post-detail.tag
@@ -391,18 +391,18 @@
 					this.replies = replies
 					this.update();
 
-		reply() {
+		this.reply = () => {
 			@open-post-form do
 				reply: @p
 
-		repost() {
+		this.repost = () => {
 			text = window.prompt '「' + @summary + '」をRepost'
 			if text?
 				this.api 'posts/create' do
 					repost_id: @p.id
 					text: if text == '' then undefined else text
 
-		like() {
+		this.like = () => {
 			if @p.is_liked
 				this.api 'posts/likes/delete' do
 					post_id: @p.id
@@ -416,7 +416,7 @@
 					@p.is_liked = true
 					this.update();
 
-		load-context() {
+		this.load-context = () => {
 			this.loading-context = true
 
 			// Get context
diff --git a/src/web/app/mobile/tags/post-form.tag b/src/web/app/mobile/tags/post-form.tag
index 72778f3b40..7b7243cf06 100644
--- a/src/web/app/mobile/tags/post-form.tag
+++ b/src/web/app/mobile/tags/post-form.tag
@@ -200,13 +200,13 @@
 
 			this.refs.text.focus();
 
-		onkeypress(e) {
+		this.onkeypress = (e) => {
 			if (e.char-code == 10 || e.char-code == 13) && e.ctrlKey
 				@post!
 			else
 				return true
 
-		onpaste(e) {
+		this.onpaste = (e) => {
 			data = e.clipboardData
 			items = data.items
 			for i from 0 to items.length - 1
@@ -216,10 +216,10 @@
 						@upload item.getAsFile();
 			return true
 
-		select-file() {
+		this.select-file = () => {
 			this.refs.file.click!
 
-		select-file-from-drive() {
+		this.select-file-from-drive = () => {
 			browser = document.body.appendChild document.createElement 'mk-drive-selector' 
 			browser = riot.mount browser, do
 				multiple: true
@@ -227,16 +227,16 @@
 			browser.on('selected', (files) => {
 				files.for-each @add-file
 
-		change-file() {
+		this.change-file = () => {
 			files = this.refs.file.files
 			for i from 0 to files.length - 1
 				file = files.item i
 				@upload file
 
-		upload(file) {
+		this.upload = (file) => {
 			this.refs.uploader.upload file
 
-		add-file(file) {
+		this.add-file = (file) => {
 			file._remove = =>
 				this.files = this.files.filter (x) -> x.id != file.id
 				this.trigger 'change-files' this.files
@@ -246,14 +246,14 @@
 			this.trigger 'change-files' this.files
 			this.update();
 
-		add-poll() {
+		this.add-poll = () => {
 			this.poll = true
 
-		on-poll-destroyed() {
+		this.on-poll-destroyed = () => {
 			@update do
 				poll: false
 
-		post() {
+		this.post = () => {
 			this.wait = true
 
 			files = if this.files? and this.files.length > 0
@@ -274,11 +274,11 @@
 				this.wait = false
 				this.update();
 
-		cancel() {
+		this.cancel = () => {
 			this.trigger('cancel');
 			this.unmount();
 
-		cat() {
+		this.cat = () => {
 			this.refs.text.value = this.refs.text.value + get-cat!
 	</script>
 </mk-post-form>
diff --git a/src/web/app/mobile/tags/search-posts.tag b/src/web/app/mobile/tags/search-posts.tag
index 120df41407..caa0af4be3 100644
--- a/src/web/app/mobile/tags/search-posts.tag
+++ b/src/web/app/mobile/tags/search-posts.tag
@@ -22,7 +22,7 @@
 				res posts
 				this.trigger('loaded');
 
-		more() {
+		this.more = () => {
 			@offset += @max
 			this.api 'posts/search' do
 				query: @query
diff --git a/src/web/app/mobile/tags/timeline-post.tag b/src/web/app/mobile/tags/timeline-post.tag
index faa05ec7a9..9cc6a088b5 100644
--- a/src/web/app/mobile/tags/timeline-post.tag
+++ b/src/web/app/mobile/tags/timeline-post.tag
@@ -319,18 +319,18 @@
 						riot.mount @preview, do
 							url: t.content
 
-		reply() {
+		this.reply = () => {
 			@open-post-form do
 				reply: @p
 
-		repost() {
+		this.repost = () => {
 			text = window.prompt '「' + @summary + '」をRepost'
 			if text?
 				this.api 'posts/create' do
 					repost_id: @p.id
 					text: if text == '' then undefined else text
 
-		like() {
+		this.like = () => {
 			if @p.is_liked
 				this.api 'posts/likes/delete' do
 					post_id: @p.id
diff --git a/src/web/app/mobile/tags/timeline.tag b/src/web/app/mobile/tags/timeline.tag
index 156c4e4294..c6ae414556 100644
--- a/src/web/app/mobile/tags/timeline.tag
+++ b/src/web/app/mobile/tags/timeline.tag
@@ -91,7 +91,7 @@
 				post._date = date
 				post._datetext = month + '月 ' + date + '日'
 
-		more() {
+		this.more = () => {
 			if @init or @fetching or @posts.length == 0 then return
 			this.fetching = true
 			this.update();
@@ -99,20 +99,20 @@
 				this.fetching = false
 				@prepend-posts posts
 
-		set-posts(posts) {
+		this.set-posts = (posts) => {
 			this.posts = posts
 			this.update();
 
-		prepend-posts(posts) {
+		this.prepend-posts = (posts) => {
 			posts.for-each (post) =>
 				@posts.push post
 				this.update();
 
-		add-post(post) {
+		this.add-post = (post) => {
 			@posts.unshift post
 			this.update();
 
-		tail() {
+		this.tail = () => {
 			@posts[@posts.length - 1]
 	</script>
 </mk-timeline>
diff --git a/src/web/app/mobile/tags/ui-header.tag b/src/web/app/mobile/tags/ui-header.tag
index f4f44e972a..6a7ec8ec54 100644
--- a/src/web/app/mobile/tags/ui-header.tag
+++ b/src/web/app/mobile/tags/ui-header.tag
@@ -98,7 +98,7 @@
 			if this.refs.title?
 				this.refs.title.innerHTML = title
 
-		post() {
+		this.post = () => {
 			@open-post-form!
 	</script>
 </mk-ui-header>
diff --git a/src/web/app/mobile/tags/ui-nav.tag b/src/web/app/mobile/tags/ui-nav.tag
index efdec8e14d..67fbeefd15 100644
--- a/src/web/app/mobile/tags/ui-nav.tag
+++ b/src/web/app/mobile/tags/ui-nav.tag
@@ -123,7 +123,7 @@
 		this.on('mount', () => {
 			this.opts.ready!
 
-		search() {
+		this.search = () => {
 			query = window.prompt '検索' 
 			if query? and query != ''
 				@page '/search:' + query
diff --git a/src/web/app/mobile/tags/ui.tag b/src/web/app/mobile/tags/ui.tag
index cb87469c01..3913de7546 100644
--- a/src/web/app/mobile/tags/ui.tag
+++ b/src/web/app/mobile/tags/ui.tag
@@ -29,21 +29,21 @@
 		this.on('unmount', () => {
 			@stream.off 'notification' this.on-stream-notification
 
-		ready() {
+		this.ready = () => {
 			@ready-count++
 
 			if @ready-count == 2
 				@init-view-position!
 
-		init-view-position() {
+		this.init-view-position = () => {
 			top = this.refs.header.root.offset-height
 			this.refs.main.style.padding-top = top + 'px' 
 
-		toggle-drawer() {
+		this.toggle-drawer = () => {
 			this.is-drawer-opening = !@is-drawer-opening
 			this.refs.nav.root.style.display = if @is-drawer-opening then 'block' else 'none' 
 
-		on-stream-notification(notification) {
+		this.on-stream-notification = (notification) => {
 			el = document.body.appendChild document.createElement 'mk-notify' 
 			riot.mount el, do
 				notification: notification
diff --git a/src/web/app/mobile/tags/user-followers.tag b/src/web/app/mobile/tags/user-followers.tag
index 49091421eb..4eafb1ed90 100644
--- a/src/web/app/mobile/tags/user-followers.tag
+++ b/src/web/app/mobile/tags/user-followers.tag
@@ -10,7 +10,7 @@
 
 		this.user = this.opts.user
 
-		fetch(iknow, limit, cursor, cb) {
+		this.fetch = (iknow, limit, cursor, cb) => {
 			this.api 'users/followers' do
 				user_id: @user.id
 				iknow: iknow
diff --git a/src/web/app/mobile/tags/user-following.tag b/src/web/app/mobile/tags/user-following.tag
index c00894a4c0..25d3c9926e 100644
--- a/src/web/app/mobile/tags/user-following.tag
+++ b/src/web/app/mobile/tags/user-following.tag
@@ -10,7 +10,7 @@
 
 		this.user = this.opts.user
 
-		fetch(iknow, limit, cursor, cb) {
+		this.fetch = (iknow, limit, cursor, cb) => {
 			this.api 'users/following' do
 				user_id: @user.id
 				iknow: iknow
diff --git a/src/web/app/mobile/tags/user-timeline.tag b/src/web/app/mobile/tags/user-timeline.tag
index a05fd84228..82a6413546 100644
--- a/src/web/app/mobile/tags/user-timeline.tag
+++ b/src/web/app/mobile/tags/user-timeline.tag
@@ -22,7 +22,7 @@
 				res posts
 				this.trigger('loaded');
 
-		more() {
+		this.more = () => {
 			this.api 'users/posts' do
 				user_id: @user.id
 				with_media: @with-media
diff --git a/src/web/app/mobile/tags/user.tag b/src/web/app/mobile/tags/user.tag
index 6cd815a37f..d36455e6e9 100644
--- a/src/web/app/mobile/tags/user.tag
+++ b/src/web/app/mobile/tags/user.tag
@@ -172,19 +172,19 @@
 				this.trigger 'loaded' user
 				this.update();
 
-		go-posts() {
+		this.go-posts = () => {
 			this.page = 'posts' 
 			this.update();
 
-		go-media() {
+		this.go-media = () => {
 			this.page = 'media' 
 			this.update();
 
-		go-graphs() {
+		this.go-graphs = () => {
 			this.page = 'graphs' 
 			this.update();
 
-		go-likes() {
+		this.go-likes = () => {
 			this.page = 'likes' 
 			this.update();
 	</script>
diff --git a/src/web/app/mobile/tags/users-list.tag b/src/web/app/mobile/tags/users-list.tag
index 6d45c32c31..b0f7f73ff5 100644
--- a/src/web/app/mobile/tags/users-list.tag
+++ b/src/web/app/mobile/tags/users-list.tag
@@ -82,7 +82,7 @@
 			@fetch =>
 				this.trigger('loaded');
 
-		fetch(cb) {
+		this.fetch = (cb) => {
 			this.fetching = true
 			this.update();
 			obj <~ this.opts.fetch do
@@ -95,7 +95,7 @@
 			this.update();
 			if cb? then cb!
 
-		more() {
+		this.more = () => {
 			this.more-fetching = true
 			this.update();
 			obj <~ this.opts.fetch do
@@ -107,7 +107,7 @@
 			this.more-fetching = false
 			this.update();
 
-		set-mode(mode) {
+		this.set-mode = (mode) => {
 			@update do
 				mode: mode