feat(frontend): セーフモード (#16245)

* feat(frontend): セーフモード

* Update Changelog

* Update Changelog

* fix

* fix

* Update Changelog

* Update Changelog

* PWAのショートカット経由でもセーフモードで起動できるように

* Update ClientServerService.ts

---------

Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>

15 files changed, 179 insertions, 48 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f8e961073c..56efd7477c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,12 @@
 - 日本語における公開範囲名称の「ダイレクト」が「指名」に改称されました
 
 ### Client
+- Feat: セーフモード
+	- プラグイン・テーマ・カスタムCSSの使用でクライアントの起動に問題が発生した際に、これらを無効にして起動できます
+	- 以下の方法でセーフモードを起動できます
+		- `g` キーを連打する
+		- URLに`?safemode=true`を付ける
+		- PWAのショートカットで Safemode を選択して起動する
 - Fix: 一部の設定検索結果が存在しないパスになる問題を修正  
   (Cherry-picked from https://activitypub.software/TransFem-org/Sharkey/-/merge_requests/1171)
 - Fix: テーマエディタが動作しない問題を修正
diff --git a/locales/index.d.ts b/locales/index.d.ts
index d2e2b729e8..f77925b410 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -5501,6 +5501,22 @@ export interface Locale extends ILocale {
      * 日
      */
     "inDays": string;
+    /**
+     * セーフモードが有効です
+     */
+    "safeModeEnabled": string;
+    /**
+     * セーフモードが有効なため、プラグインはすべて無効化されています。
+     */
+    "pluginsAreDisabledBecauseSafeMode": string;
+    /**
+     * セーフモードが有効なため、カスタムCSSは適用されていません。
+     */
+    "customCssIsDisabledBecauseSafeMode": string;
+    /**
+     * セーフモードが有効な間はデフォルトのテーマが使用されます。セーフモードをオフにすると元に戻ります。
+     */
+    "themeIsDefaultBecauseSafeMode": string;
     "_order": {
         /**
          * 新しい順
@@ -11839,6 +11855,10 @@ export interface Locale extends ILocale {
          * 修復ツールを起動
          */
         "otherOption3": string;
+        /**
+         * Misskeyをセーフモードで起動
+         */
+        "otherOption4": string;
     };
     "_search": {
         /**
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index 377231ee19..4d79b31b1b 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -1370,6 +1370,10 @@ defaultImageCompressionLevel: "デフォルトの画像圧縮度"
 defaultImageCompressionLevel_description: "低くすると画質を保てますが、ファイルサイズは増加します。<br>高くするとファイルサイズを減らせますが、画質は低下します。"
 inMinutes: "分"
 inDays: "日"
+safeModeEnabled: "セーフモードが有効です"
+pluginsAreDisabledBecauseSafeMode: "セーフモードが有効なため、プラグインはすべて無効化されています。"
+customCssIsDisabledBecauseSafeMode: "セーフモードが有効なため、カスタムCSSは適用されていません。"
+themeIsDefaultBecauseSafeMode: "セーフモードが有効な間はデフォルトのテーマが使用されます。セーフモードをオフにすると元に戻ります。"
 
 _order:
   newest: "新しい順"
@@ -3164,6 +3168,7 @@ _bootErrors:
   otherOption1: "クライアント設定とキャッシュを削除"
   otherOption2: "簡易クライアントを起動"
   otherOption3: "修復ツールを起動"
+  otherOption4: "Misskeyをセーフモードで起動"
 
 _search:
   searchScopeAll: "全て"
diff --git a/packages/backend/src/server/web/ClientServerService.ts b/packages/backend/src/server/web/ClientServerService.ts
index 4d122b0fcf..768cfde701 100644
--- a/packages/backend/src/server/web/ClientServerService.ts
+++ b/packages/backend/src/server/web/ClientServerService.ts
@@ -188,6 +188,10 @@ export class ClientServerService {
 					'url': 'url',
 				},
 			},
+			'shortcuts': [{
+				'name': 'Safemode',
+				'url': '/?safemode=true',
+			}],
 		};
 
 		manifest = {
diff --git a/packages/backend/src/server/web/boot.js b/packages/backend/src/server/web/boot.js
index 24794cbf2a..1a30e9ed2b 100644
--- a/packages/backend/src/server/web/boot.js
+++ b/packages/backend/src/server/web/boot.js
@@ -94,23 +94,37 @@
 	}
 	//#endregion
 
+	let isSafeMode = (localStorage.getItem('isSafeMode') === 'true');
+
+	if (!isSafeMode) {
+		const urlParams = new URLSearchParams(window.location.search);
+
+		if (urlParams.has('safemode') && urlParams.get('safemode') === 'true') {
+			localStorage.setItem('isSafeMode', 'true');
+			isSafeMode = true;
+		}
+	}
+
 	//#region Theme
-	const theme = localStorage.getItem('theme');
-	if (theme) {
-		for (const [k, v] of Object.entries(JSON.parse(theme))) {
-			document.documentElement.style.setProperty(`--MI_THEME-${k}`, v.toString());
+	if (!isSafeMode) {
+		const theme = localStorage.getItem('theme');
+		if (theme) {
+			for (const [k, v] of Object.entries(JSON.parse(theme))) {
+				document.documentElement.style.setProperty(`--MI_THEME-${k}`, v.toString());
 
-			// HTMLの theme-color 適用
-			if (k === 'htmlThemeColor') {
-				for (const tag of document.head.children) {
-					if (tag.tagName === 'META' && tag.getAttribute('name') === 'theme-color') {
-						tag.setAttribute('content', v);
-						break;
+				// HTMLの theme-color 適用
+				if (k === 'htmlThemeColor') {
+					for (const tag of document.head.children) {
+						if (tag.tagName === 'META' && tag.getAttribute('name') === 'theme-color') {
+							tag.setAttribute('content', v);
+							break;
+						}
 					}
 				}
 			}
 		}
 	}
+
 	const colorScheme = localStorage.getItem('colorScheme');
 	if (colorScheme) {
 		document.documentElement.style.setProperty('color-scheme', colorScheme);
@@ -127,11 +141,13 @@
 		document.documentElement.classList.add('useSystemFont');
 	}
 
-	const customCss = localStorage.getItem('customCss');
-	if (customCss && customCss.length > 0) {
-		const style = document.createElement('style');
-		style.innerHTML = customCss;
-		document.head.appendChild(style);
+	if (!isSafeMode) {
+		const customCss = localStorage.getItem('customCss');
+		if (customCss && customCss.length > 0) {
+			const style = document.createElement('style');
+			style.innerHTML = customCss;
+			document.head.appendChild(style);
+		}
 	}
 
 	async function addStyle(styleText) {
@@ -159,9 +175,13 @@
 			otherOption1: 'Clear preferences and cache',
 			otherOption2: 'Start the simple client',
 			otherOption3: 'Start the repair tool',
+			otherOption4: 'Start Misskey in safe mode',
 		}, locale?._bootErrors || {});
 		const reload = locale?.reload || 'Reload';
 
+		const safeModeUrl = new URL(window.location.href);
+		safeModeUrl.searchParams.set('safemode', 'true');
+
 		let errorsElement = document.getElementById('errors');
 
 		if (!errorsElement) {
@@ -182,6 +202,12 @@
 			<p>${messages.solution4}</p>
 			<details style="color: #86b300;">
 				<summary>${messages.otherOption}</summary>
+				<a href="${safeModeUrl}">
+					<button class="button-small">
+						<span class="button-label-small">${messages.otherOption4}</span>
+					</button>
+				</a>
+				<br>
 				<a href="/flush">
 					<button class="button-small">
 						<span class="button-label-small">${messages.otherOption1}</span>
diff --git a/packages/backend/src/server/web/manifest.json b/packages/backend/src/server/web/manifest.json
index 41171d62a1..90d4530857 100644
--- a/packages/backend/src/server/web/manifest.json
+++ b/packages/backend/src/server/web/manifest.json
@@ -34,5 +34,11 @@
 			"text": "text",
 			"url": "url"
 		}
-	}
+	},
+	"shortcuts": [
+		{
+			"name": "Safemode",
+			"url": "/?safemode=true"
+		}
+	]
 }
diff --git a/packages/frontend-shared/js/config.ts b/packages/frontend-shared/js/config.ts
index 26dd36d6c3..4963d631f9 100644
--- a/packages/frontend-shared/js/config.ts
+++ b/packages/frontend-shared/js/config.ts
@@ -23,6 +23,7 @@ export const version = _VERSION_;
 export const instanceName = (siteName === 'Misskey' || siteName == null) ? host : siteName;
 export const ui = localStorage.getItem('ui');
 export const debug = localStorage.getItem('debug') === 'true';
+export const isSafeMode = localStorage.getItem('isSafeMode') === 'true';
 
 export function updateLocale(newLocale: Locale): void {
 	locale = newLocale;
diff --git a/packages/frontend/src/boot/common.ts b/packages/frontend/src/boot/common.ts
index 992bde9bd1..ea41155ab0 100644
--- a/packages/frontend/src/boot/common.ts
+++ b/packages/frontend/src/boot/common.ts
@@ -5,7 +5,7 @@
 
 import { computed, watch, version as vueVersion } from 'vue';
 import { compareVersions } from 'compare-versions';
-import { version, lang, updateLocale, locale, apiUrl } from '@@/js/config.js';
+import { version, lang, updateLocale, locale, apiUrl, isSafeMode } from '@@/js/config.js';
 import defaultLightTheme from '@@/themes/l-light.json5';
 import defaultDarkTheme from '@@/themes/d-green-lime.json5';
 import type { App } from 'vue';
@@ -168,28 +168,35 @@ export async function common(createVue: () => Promise<App<Element>>) {
 
 	// NOTE: この処理は必ずクライアント更新チェック処理より後に来ること(テーマ再構築のため)
 	watch(store.r.darkMode, (darkMode) => {
-		applyTheme(darkMode
-			? (prefer.s.darkTheme ?? defaultDarkTheme)
-			: (prefer.s.lightTheme ?? defaultLightTheme),
-		);
-	}, { immediate: miLocalStorage.getItem('theme') == null });
+		const theme = (() => {
+			if (darkMode) {
+				return isSafeMode ? defaultDarkTheme : (prefer.s.darkTheme ?? defaultDarkTheme);
+			} else {
+				return isSafeMode ? defaultLightTheme : (prefer.s.lightTheme ?? defaultLightTheme);
+			}
+		})();
+
+		applyTheme(theme);
+	}, { immediate: isSafeMode || miLocalStorage.getItem('theme') == null });
 
 	window.document.documentElement.dataset.colorScheme = store.s.darkMode ? 'dark' : 'light';
 
-	const darkTheme = prefer.model('darkTheme');
-	const lightTheme = prefer.model('lightTheme');
+	if (!isSafeMode) {
+		const darkTheme = prefer.model('darkTheme');
+		const lightTheme = prefer.model('lightTheme');
 
-	watch(darkTheme, (theme) => {
-		if (store.s.darkMode) {
-			applyTheme(theme ?? defaultDarkTheme);
-		}
-	});
+		watch(darkTheme, (theme) => {
+			if (store.s.darkMode) {
+				applyTheme(theme ?? defaultDarkTheme);
+			}
+		});
 
-	watch(lightTheme, (theme) => {
-		if (!store.s.darkMode) {
-			applyTheme(theme ?? defaultLightTheme);
-		}
-	});
+		watch(lightTheme, (theme) => {
+			if (!store.s.darkMode) {
+				applyTheme(theme ?? defaultLightTheme);
+			}
+		});
+	}
 
 	//#region Sync dark mode
 	if (prefer.s.syncDeviceDarkMode) {
@@ -203,17 +210,19 @@ export async function common(createVue: () => Promise<App<Element>>) {
 	});
 	//#endregion
 
-	if (prefer.s.darkTheme && store.s.darkMode) {
-		if (miLocalStorage.getItem('themeId') !== prefer.s.darkTheme.id) applyTheme(prefer.s.darkTheme);
-	} else if (prefer.s.lightTheme && !store.s.darkMode) {
-		if (miLocalStorage.getItem('themeId') !== prefer.s.lightTheme.id) applyTheme(prefer.s.lightTheme);
-	}
+	if (!isSafeMode) {
+		if (prefer.s.darkTheme && store.s.darkMode) {
+			if (miLocalStorage.getItem('themeId') !== prefer.s.darkTheme.id) applyTheme(prefer.s.darkTheme);
+		} else if (prefer.s.lightTheme && !store.s.darkMode) {
+			if (miLocalStorage.getItem('themeId') !== prefer.s.lightTheme.id) applyTheme(prefer.s.lightTheme);
+		}
 
-	fetchInstanceMetaPromise.then(() => {
-		// TODO: instance.defaultLightTheme/instance.defaultDarkThemeが不正な形式だった場合のケア
-		if (prefer.s.lightTheme == null && instance.defaultLightTheme != null) prefer.commit('lightTheme', JSON.parse(instance.defaultLightTheme));
-		if (prefer.s.darkTheme == null && instance.defaultDarkTheme != null) prefer.commit('darkTheme', JSON.parse(instance.defaultDarkTheme));
-	});
+		fetchInstanceMetaPromise.then(() => {
+			// TODO: instance.defaultLightTheme/instance.defaultDarkThemeが不正な形式だった場合のケア
+			if (prefer.s.lightTheme == null && instance.defaultLightTheme != null) prefer.commit('lightTheme', JSON.parse(instance.defaultLightTheme));
+			if (prefer.s.darkTheme == null && instance.defaultDarkTheme != null) prefer.commit('darkTheme', JSON.parse(instance.defaultDarkTheme));
+		});
+	}
 
 	watch(prefer.r.overridedDeviceKind, (kind) => {
 		updateDeviceKind(kind);
diff --git a/packages/frontend/src/boot/main-boot.ts b/packages/frontend/src/boot/main-boot.ts
index ae4e0445db..46e690a55f 100644
--- a/packages/frontend/src/boot/main-boot.ts
+++ b/packages/frontend/src/boot/main-boot.ts
@@ -28,8 +28,8 @@ import { addCustomEmoji, removeCustomEmojis, updateCustomEmojis } from '@/custom
 import { prefer } from '@/preferences.js';
 import { launchPlugins } from '@/plugin.js';
 import { updateCurrentAccountPartial } from '@/accounts.js';
-import { signout } from '@/signout.js';
 import { migrateOldSettings } from '@/pref-migrate.js';
+import { unisonReload } from '@/utility/unison-reload.js';
 
 export async function mainBoot() {
 	const { isClientUpdated, lastVersion } = await common(async () => {
@@ -391,6 +391,8 @@ export async function mainBoot() {
 	}
 
 	// shortcut
+	let safemodeRequestCount = 0;
+	let safemodeRequestTimer: number | null = null;
 	const keymap = {
 		'p|n': () => {
 			if ($i == null) return;
@@ -402,6 +404,24 @@ export async function mainBoot() {
 		's': () => {
 			mainRouter.push('/search');
 		},
+		'g': {
+			callback: () => {
+				// mを5回押すとセーフモードに入る
+				safemodeRequestCount++;
+				if (safemodeRequestCount >= 5) {
+					miLocalStorage.setItem('isSafeMode', 'true');
+					unisonReload();
+				} else {
+					if (safemodeRequestTimer != null) {
+						window.clearTimeout(safemodeRequestTimer);
+					}
+					safemodeRequestTimer = window.setTimeout(() => {
+						safemodeRequestCount = 0;
+					}, 300);
+				}
+			},
+			allowRepeat: true,
+		}
 	} as const satisfies Keymap;
 	window.document.addEventListener('keydown', makeHotkey(keymap), { passive: false });
 
diff --git a/packages/frontend/src/local-storage.ts b/packages/frontend/src/local-storage.ts
index 78fba9f7b4..b64a8c5dd5 100644
--- a/packages/frontend/src/local-storage.ts
+++ b/packages/frontend/src/local-storage.ts
@@ -33,6 +33,7 @@ export type Keys = (
 	'preferences' |
 	'latestPreferencesUpdate' |
 	'hidePreferencesRestoreSuggestion' |
+	'isSafeMode' |
 	`miux:${string}` |
 	`ui:folder:${string}` |
 	`themes:${string}` | // DEPRECATED
diff --git a/packages/frontend/src/pages/settings/custom-css.vue b/packages/frontend/src/pages/settings/custom-css.vue
index 9b0e04860e..83a188b2cb 100644
--- a/packages/frontend/src/pages/settings/custom-css.vue
+++ b/packages/frontend/src/pages/settings/custom-css.vue
@@ -7,6 +7,8 @@ SPDX-License-Identifier: AGPL-3.0-only
 <div class="_gaps_m">
 	<FormInfo warn>{{ i18n.ts.customCssWarn }}</FormInfo>
 
+	<FormInfo v-if="isSafeMode" warn>{{ i18n.ts.customCssIsDisabledBecauseSafeMode }}</FormInfo>
+
 	<MkCodeEditor v-model="localCustomCss" manualSave lang="css">
 		<template #label>CSS</template>
 	</MkCodeEditor>
@@ -17,6 +19,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { ref, watch, computed } from 'vue';
 import MkCodeEditor from '@/components/MkCodeEditor.vue';
 import FormInfo from '@/components/MkInfo.vue';
+import { isSafeMode } from '@@/js/config.js';
 import * as os from '@/os.js';
 import { unisonReload } from '@/utility/unison-reload.js';
 import { i18n } from '@/i18n.js';
diff --git a/packages/frontend/src/pages/settings/plugin.vue b/packages/frontend/src/pages/settings/plugin.vue
index 16d5947ad2..bff307ab7d 100644
--- a/packages/frontend/src/pages/settings/plugin.vue
+++ b/packages/frontend/src/pages/settings/plugin.vue
@@ -10,7 +10,9 @@ SPDX-License-Identifier: AGPL-3.0-only
 			<SearchKeyword>{{ i18n.ts._settings.pluginBanner }}</SearchKeyword>
 		</MkFeatureBanner>
 
-		<FormLink to="/settings/plugin/install"><template #icon><i class="ti ti-download"></i></template>{{ i18n.ts._plugin.install }}</FormLink>
+		<MkInfo v-if="isSafeMode" warn>{{ i18n.ts.pluginsAreDisabledBecauseSafeMode }}</MkInfo>
+
+		<FormLink v-else to="/settings/plugin/install"><template #icon><i class="ti ti-download"></i></template>{{ i18n.ts._plugin.install }}</FormLink>
 
 		<FormSection>
 			<template #label>{{ i18n.ts.manage }}</template>
@@ -103,10 +105,12 @@ import MkCode from '@/components/MkCode.vue';
 import MkFolder from '@/components/MkFolder.vue';
 import MkKeyValue from '@/components/MkKeyValue.vue';
 import MkFeatureBanner from '@/components/MkFeatureBanner.vue';
+import MkInfo from '@/components/MkInfo.vue';
 import { i18n } from '@/i18n.js';
 import { definePage } from '@/page.js';
 import { changePluginActive, configPlugin, pluginLogs, uninstallPlugin, reloadPlugin } from '@/plugin.js';
 import { prefer } from '@/preferences.js';
+import { isSafeMode } from '@@/js/config.js';
 import * as os from '@/os.js';
 
 const plugins = prefer.r.plugins;
diff --git a/packages/frontend/src/pages/settings/theme.vue b/packages/frontend/src/pages/settings/theme.vue
index accb1ccc55..d8ae356f6b 100644
--- a/packages/frontend/src/pages/settings/theme.vue
+++ b/packages/frontend/src/pages/settings/theme.vue
@@ -35,7 +35,9 @@ SPDX-License-Identifier: AGPL-3.0-only
 			</div>
 		</div>
 
-		<div class="_gaps">
+		<MkInfo v-if="isSafeMode" warn>{{ i18n.ts.themeIsDefaultBecauseSafeMode }}</MkInfo>
+
+		<div v-else class="_gaps">
 			<template v-if="!store.r.darkMode.value">
 				<SearchMarker :keywords="['light', 'theme']">
 					<MkFolder :defaultOpen="true" :max-height="500">
@@ -204,12 +206,14 @@ import JSON5 from 'json5';
 import defaultLightTheme from '@@/themes/l-light.json5';
 import defaultDarkTheme from '@@/themes/d-green-lime.json5';
 import type { Theme } from '@/theme.js';
+import { isSafeMode } from '@@/js/config.js';
 import * as os from '@/os.js';
 import MkSwitch from '@/components/MkSwitch.vue';
 import FormSection from '@/components/form/section.vue';
 import FormLink from '@/components/form/link.vue';
 import MkFolder from '@/components/MkFolder.vue';
 import MkThemePreview from '@/components/MkThemePreview.vue';
+import MkInfo from '@/components/MkInfo.vue';
 import { getBuiltinThemesRef, getThemesRef, removeTheme } from '@/theme.js';
 import { isDeviceDarkmode } from '@/utility/is-device-darkmode.js';
 import { store } from '@/store.js';
diff --git a/packages/frontend/src/plugin.ts b/packages/frontend/src/plugin.ts
index d6007a27ed..5610ae7095 100644
--- a/packages/frontend/src/plugin.ts
+++ b/packages/frontend/src/plugin.ts
@@ -6,6 +6,7 @@
 import { ref, defineAsyncComponent } from 'vue';
 import { Interpreter, Parser, utils, values } from '@syuilo/aiscript';
 import { compareVersions } from 'compare-versions';
+import { isSafeMode } from '@@/js/config.js';
 import { genId } from '@/utility/id.js';
 import * as Misskey from 'misskey-js';
 import { aiScriptReadline, createAiScriptEnv } from '@/aiscript/api.js';
@@ -232,6 +233,7 @@ export function launchPlugins() {
 }
 
 async function launchPlugin(id: Plugin['installId']): Promise<void> {
+	if (isSafeMode) return;
 	const plugin = prefer.s.plugins.find(x => x.installId === id);
 	if (!plugin) return;
 
diff --git a/packages/frontend/src/ui/_common_/common.vue b/packages/frontend/src/ui/_common_/common.vue
index da20d23cfd..37c95f2db2 100644
--- a/packages/frontend/src/ui/_common_/common.vue
+++ b/packages/frontend/src/ui/_common_/common.vue
@@ -94,6 +94,11 @@ SPDX-License-Identifier: AGPL-3.0-only
 <div v-if="dev" id="devTicker"><span style="animation: dev-ticker-blink 2s infinite;">DEV BUILD</span></div>
 
 <div v-if="$i && $i.isBot" id="botWarn"><span style="animation: dev-ticker-blink 2s infinite;">{{ i18n.ts.loggedInAsBot }}</span></div>
+
+<div v-if="isSafeMode" id="safemodeWarn">
+	<span style="animation: dev-ticker-blink 2s infinite;">{{ i18n.ts.safeModeEnabled }}</span>&nbsp;
+	<button class="_textButton" style="pointer-events: all;" @click="exitSafeMode">{{ i18n.ts.turnItOff }}</button>
+</div>
 </template>
 
 <script lang="ts" setup>
@@ -101,7 +106,10 @@ import { defineAsyncComponent, ref, TransitionGroup } from 'vue';
 import * as Misskey from 'misskey-js';
 import { swInject } from './sw-inject.js';
 import XNotification from './notification.vue';
+import { isSafeMode } from '@@/js/config.js';
 import { popups } from '@/os.js';
+import { unisonReload } from '@/utility/unison-reload.js';
+import { miLocalStorage } from '@/local-storage.js';
 import { pendingApiRequestsCount } from '@/utility/misskey-api.js';
 import * as sound from '@/utility/sound.js';
 import { $i } from '@/i.js';
@@ -144,6 +152,13 @@ function onNotification(notification: Misskey.entities.Notification, isClient =
 	sound.playMisskeySfx('notification');
 }
 
+function exitSafeMode() {
+	miLocalStorage.removeItem('isSafeMode');
+	const url = new URL(window.location.href);
+	url.searchParams.delete('safemode');
+	unisonReload(url.toString());
+}
+
 if ($i) {
 	if (store.s.realtimeMode) {
 		const connection = useStream().useChannel('main');
@@ -396,7 +411,7 @@ if ($i) {
 	width: 100%;
 	height: max-content;
 	text-align: center;
-	z-index: 2147483647;
+	z-index: 2147483646;
 	color: #ff0;
 	background: rgba(0, 0, 0, 0.5);
 	padding: 4px 7px;
@@ -405,6 +420,11 @@ if ($i) {
 	user-select: none;
 }
 
+#safemodeWarn {
+	@extend #botWarn;
+	z-index: 2147483647;
+}
+
 #devTicker {
 	position: fixed;
 	bottom: 0;