Remove MathJax v2 (#16961)

GitOrigin-RevId: 32a43361cfc883aa1a5ed85f6be5432b6e838b9d

package-lock.json

@@ -30914,13 +30914,6 @@
       "dev": true
     },
     "node_modules/mathjax": {
-      "version": "2.7.9",
-      "resolved": "https://registry.npmjs.org/mathjax/-/mathjax-2.7.9.tgz",
-      "integrity": "sha512-NOGEDTIM9+MrsqnjPEjVGNx4q0GQxqm61yQwSK+/5S59i26wId5IC5gNu9/bu8+CCVl5p9G2IHcAl/wJa+5+BQ==",
-      "dev": true
-    },
-    "node_modules/mathjax-3": {
-      "name": "mathjax",
       "version": "3.2.2",
       "resolved": "https://registry.npmjs.org/mathjax/-/mathjax-3.2.2.tgz",
       "integrity": "sha512-Bt+SSVU8eBG27zChVewOicYs7Xsdt40qm4+UpHyX7k0/O9NliPc+x77k1/FEsPsjKPZGJvtRZM1vO+geW0OhGw==",
@@ -46261,8 +46254,7 @@
         "less": "^3.13.1",
         "less-loader": "^11.1.3",
         "match-sorter": "^6.2.0",
-        "mathjax": "^2.7.9",
-        "mathjax-3": "npm:mathjax@^3.2.2",
+        "mathjax": "^3.2.2",
         "mensch": "^0.3.4",
         "mini-css-extract-plugin": "^2.7.6",
         "mocha": "^10.2.0",
@@ -55142,8 +55134,7 @@
         "mailchimp-api-v3": "^1.12.0",
         "marked": "^4.1.0",
         "match-sorter": "^6.2.0",
-        "mathjax": "^2.7.9",
-        "mathjax-3": "npm:mathjax@^3.2.2",
+        "mathjax": "^3.2.2",
         "mensch": "^0.3.4",
         "method-override": "^2.3.3",
         "mini-css-extract-plugin": "^2.7.6",
@@ -74114,13 +74105,7 @@
       "dev": true
     },
     "mathjax": {
-      "version": "2.7.9",
-      "resolved": "https://registry.npmjs.org/mathjax/-/mathjax-2.7.9.tgz",
-      "integrity": "sha512-NOGEDTIM9+MrsqnjPEjVGNx4q0GQxqm61yQwSK+/5S59i26wId5IC5gNu9/bu8+CCVl5p9G2IHcAl/wJa+5+BQ==",
-      "dev": true
-    },
-    "mathjax-3": {
-      "version": "npm:mathjax@3.2.2",
+      "version": "3.2.2",
       "resolved": "https://registry.npmjs.org/mathjax/-/mathjax-3.2.2.tgz",
       "integrity": "sha512-Bt+SSVU8eBG27zChVewOicYs7Xsdt40qm4+UpHyX7k0/O9NliPc+x77k1/FEsPsjKPZGJvtRZM1vO+geW0OhGw==",
       "dev": true

services/web/app/src/infrastructure/ExpressLocals.js

@@ -1,7 +1,6 @@
 const logger = require('@overleaf/logger')
 const Metrics = require('@overleaf/metrics')
 const Settings = require('@overleaf/settings')
-const querystring = require('querystring')
 const _ = require('lodash')
 const { URL } = require('url')
 const Path = require('path')
@@ -186,14 +185,7 @@ module.exports = function (webRouter, privateApiRouter, publicApiRouter) {
       return chunks.map(chunk => staticFilesBase + chunk)
     }
 
-    res.locals.mathJaxPath = `/js/libs/mathjax/MathJax.js?${querystring.stringify(
-      {
-        config: 'TeX-AMS_HTML,Safe',
-        v: PackageVersions.version.mathjax,
-      }
-    )}`
-
-    res.locals.mathJax3Path = `/js/libs/mathjax-3-${PackageVersions.version['mathjax-3']}/es5/tex-svg-full.js`
+    res.locals.mathJaxPath = `/js/libs/mathjax-${PackageVersions.version.mathjax}/es5/tex-svg-full.js`
 
     res.locals.lib = PackageVersions.lib
 

services/web/app/src/infrastructure/PackageVersions.js

@@ -1,7 +1,5 @@
 const version = {
-  // Upgrade instructions: https://github.com/overleaf/write_latex/wiki/Upgrading-Ace
-  mathjax: '2.7.9',
-  'mathjax-3': '3.2.2',
+  mathjax: '3.2.2',
 }
 
 module.exports = {

services/web/app/views/layout-base.pug

@@ -37,6 +37,7 @@ html(
 			//- Configure dynamically loaded assets (via webpack) to be downloaded from CDN
 			//- See: https://webpack.js.org/guides/public-path/#on-the-fly
 			meta(name="ol-baseAssetPath" content=buildBaseAssetPath())
+			meta(name="ol-mathJaxPath" content=mathJaxPath)
 
 			meta(name="ol-usersEmail" content=getUserEmail())
 			meta(name="ol-ab" data-type="json" content={})

services/web/app/views/project/editor/meta.pug

@@ -33,7 +33,6 @@ meta(name="ol-showTemplatesServerPro", data-type="boolean" content=showTemplates
 meta(name="ol-showPersonalAccessToken", data-type="boolean" content=showPersonalAccessToken)
 meta(name="ol-optionalPersonalAccessToken", data-type="boolean" content=optionalPersonalAccessToken)
 meta(name="ol-hasTrackChangesFeature", data-type="boolean" content=hasTrackChangesFeature)
-meta(name="ol-mathJax3Path" content=mathJax3Path)
 meta(name="ol-inactiveTutorials", data-type="json" content=user.inactiveTutorials)
 meta(name="ol-projectTags" data-type="json" content=projectTags)
 meta(name="ol-idePageReact", data-type="boolean" content=idePageReact)

services/web/cypress/support/shared/commands/mathjax.ts

@@ -24,9 +24,9 @@ window.MathJax = {
 
 export const interceptMathJax = () => {
   // NOTE: this is just a URL to be intercepted with the stub, not the real (versioned) MathJax URL
-  const url = '/js/libs/mathjax-3/es5/tex-svg-full.js'
+  const url = '/js/libs/mathjax/es5/tex-svg-full.js'
   cy.window().then(win => {
-    win.metaAttributesCache.set('ol-mathJax3Path', url)
+    win.metaAttributesCache.set('ol-mathJaxPath', url)
   })
   cy.intercept('GET', url, MATHJAX_STUB).as('mathjax-load-request')
 }

services/web/frontend/js/base.js

@@ -22,7 +22,6 @@ import './modules/errorCatcher'
 import './modules/localStorage'
 import './modules/sessionStorage'
 import getMeta from './utils/meta'
-import { configureMathJax } from './features/mathjax/configure'
 
 const App = angular
   .module('OverleafApp', [
@@ -40,8 +39,6 @@ const App = angular
     function ($qProvider, uiSelectConfig) {
       $qProvider.errorOnUnhandledRejections(false)
       uiSelectConfig.spinnerClass = 'fa fa-refresh ui-select-spin'
-
-      configureMathJax()
     },
   ])
 

services/web/frontend/js/directives/mathjax.js

@@ -1,15 +0,0 @@
-/* global MathJax */
-
-import App from '../base'
-
-export default App.directive('mathjax', function () {
-  return {
-    link(scope, element, attrs) {
-      if (!(MathJax && MathJax.Hub)) return
-
-      setTimeout(() => {
-        MathJax.Hub.Queue(['Typeset', MathJax.Hub, element.get(0)])
-      }, 0)
-    },
-  }
-})

services/web/frontend/js/features/chat/components/message-content.tsx

@@ -1,8 +1,6 @@
 import { useRef, useEffect, type FC } from 'react'
-// @ts-ignore
 import Linkify from 'react-linkify'
 import useIsMounted from '../../../shared/hooks/use-is-mounted'
-import { configureMathJax } from '../../mathjax/configure'
 import { loadMathJax } from '../../mathjax/load-mathjax'
 import { debugConsole } from '@/utils/debugging'
 
@@ -18,18 +16,6 @@ const MessageContent: FC<{ content: string }> = ({ content }) => {
         a.setAttribute('rel', 'noreferrer noopener')
       }
 
-      // MathJax v2 typesetting
-      if (window.MathJax?.Hub) {
-        const { Hub } = window.MathJax
-
-        const timeout = setTimeout(() => {
-          configureMathJax()
-          Hub.Queue(['Typeset', Hub, root.current])
-        }, 0)
-
-        return () => clearTimeout(timeout)
-      }
-
       // MathJax v3 typesetting
       loadMathJax()
         .then(MathJax => {

services/web/frontend/js/features/mathjax/configure.js

@@ -1,49 +0,0 @@
-/* global MathJax */
-
-import { mathJaxLoaded } from './util'
-import getMeta from '../../utils/meta'
-
-let configured = false
-
-export function configureMathJax() {
-  if (configured) return
-  if (getMeta('ol-mathJax3Path')) return
-  if (!mathJaxLoaded()) return
-
-  const inlineMath = [['\\(', '\\)']]
-
-  if (!getMeta('ol-no-single-dollar')) {
-    inlineMath.push(['$', '$'])
-  }
-
-  MathJax.Hub.Config({
-    messageStyle: 'none',
-    imageFont: null,
-    // Fast preview, introduced in 2.5, is unhelpful due to extra codemirror refresh
-    // and disabling it avoids issues with math processing errors
-    // github.com/overleaf/write_latex/pull/1375
-    'fast-preview': { disabled: true },
-    'HTML-CSS': {
-      availableFonts: ['TeX'],
-      // MathJax's automatic font scaling does not work well when we render math
-      // that isn't yet on the page, so we disable it and set a global font
-      // scale factor
-      scale: 110,
-      matchFontHeight: false,
-    },
-    TeX: {
-      equationNumbers: { autoNumber: 'AMS' },
-      useLabelIDs: false,
-    },
-    skipStartupTypeset: true,
-    tex2jax: {
-      processEscapes: true,
-      inlineMath,
-      displayMath: [
-        ['$$', '$$'],
-        ['\\[', '\\]'],
-      ],
-    },
-  })
-  configured = true
-}

services/web/frontend/js/features/mathjax/index.js

@@ -1,14 +0,0 @@
-/* global MathJax */
-import { configureMathJax } from './configure'
-import { mathJaxLoaded } from './util'
-
-function render(el) {
-  if (!mathJaxLoaded()) return
-  configureMathJax()
-
-  setTimeout(() => {
-    MathJax.Hub.Queue(['Typeset', MathJax.Hub, el])
-  }, 0)
-}
-
-document.querySelectorAll('[data-ol-mathjax]').forEach(render)

services/web/frontend/js/features/mathjax/index.ts

@@ -0,0 +1,17 @@
+import { loadMathJax } from '@/features/mathjax/load-mathjax'
+import { debugConsole } from '@/utils/debugging'
+import getMeta from '@/utils/meta'
+
+window.addEventListener('DOMContentLoaded', function () {
+  const elements = document.querySelectorAll('[data-ol-mathjax]')
+  if (elements.length > 0) {
+    loadMathJax({
+      enableMenu: true,
+      numbering: 'ams',
+      singleDollar: !getMeta('ol-no-single-dollar'),
+      useLabelIds: true,
+    })
+      .then(MathJax => MathJax.typesetPromise([...elements]))
+      .catch(debugConsole.error)
+  }
+})

services/web/frontend/js/features/mathjax/load-mathjax.ts

@@ -2,9 +2,26 @@ import getMeta from '../../utils/meta'
 
 let mathJaxPromise: Promise<typeof window.MathJax>
 
-export const loadMathJax = async () => {
+export const loadMathJax = async (options?: {
+  enableMenu?: boolean
+  numbering?: string
+  singleDollar?: boolean
+  useLabelIds?: boolean
+}) => {
   if (!mathJaxPromise) {
     mathJaxPromise = new Promise((resolve, reject) => {
+      options = {
+        enableMenu: false,
+        singleDollar: true,
+        useLabelIds: false,
+        ...options,
+      }
+
+      const inlineMath = [['\\(', '\\)']]
+      if (options.singleDollar) {
+        inlineMath.push(['$', '$'])
+      }
+
       // https://docs.mathjax.org/en/v3.2-latest/upgrading/v2.html
       window.MathJax = {
         // https://docs.mathjax.org/en/latest/options/input/tex.html#the-configuration-block
@@ -14,10 +31,7 @@ export const loadMathJax = async () => {
             // https://github.com/mathjax/MathJax/issues/1219#issuecomment-341059843
             bm: ['\\boldsymbol{#1}', 1],
           },
-          inlineMath: [
-            ['\\(', '\\)'],
-            ['$', '$'],
-          ],
+          inlineMath,
           displayMath: [
             ['\\[', '\\]'],
             ['$$', '$$'],
@@ -30,6 +44,8 @@ export const loadMathJax = async () => {
           },
           processEscapes: true,
           processEnvironments: true,
+          useLabelIds: options.useLabelIds,
+          tags: options.numbering,
         },
         loader: {
           load: [
@@ -37,15 +53,22 @@ export const loadMathJax = async () => {
           ],
         },
         options: {
-          enableMenu: false, // https://docs.mathjax.org/en/latest/options/menu.html
+          enableMenu: options.enableMenu, // https://docs.mathjax.org/en/latest/options/menu.html
         },
         startup: {
           typeset: false,
+          pageReady() {
+            // disable the "Math Renderer" option in the context menu,
+            // as only SVG is available
+            window.MathJax.startup.document.menu.menu
+              .findID('Renderer')
+              .disable()
+          },
         },
       }
 
       const script = document.createElement('script')
-      const path = getMeta('ol-mathJax3Path')
+      const path = getMeta('ol-mathJaxPath')
       if (!path) {
         reject(new Error('No MathJax path found'))
         return

services/web/frontend/js/features/mathjax/util.js

@@ -1,5 +0,0 @@
-/* global MathJax */
-
-export function mathJaxLoaded() {
-  return !!(typeof MathJax !== 'undefined' && MathJax && MathJax.Hub)
-}

services/web/frontend/js/marketing.js

@@ -12,6 +12,7 @@ import './features/fallback-image'
 import './features/multi-submit'
 import './features/cookie-banner'
 import './features/autoplay-video'
+import './features/mathjax'
 
 $('[data-ol-lang-selector-tooltip]').tooltip({ trigger: 'hover' })
 $('[data-toggle="tooltip"]').tooltip()

services/web/frontend/stories/chat.stories.jsx

@@ -1,4 +1,3 @@
-import { useEffect } from 'react'
 import ChatPane from '../js/features/chat/components/chat-pane'
 import useFetchMock from './hooks/use-fetch-mock'
 import { generateMessages } from './fixtures/chat-messages'
@@ -47,23 +46,5 @@ export default {
   args: {
     resetUnreadMessages: () => {},
   },
-  decorators: [
-    ScopeDecorator,
-    Story => {
-      useEffect(() => {
-        window.MathJax = {
-          Hub: {
-            Queue: () => {},
-            config: { tex2jax: { inlineMath: [['$', '$']] } },
-          },
-        }
-
-        return () => {
-          delete window.MathJax
-        }
-      }, [])
-
-      return <Story />
-    },
-  ],
+  decorators: [ScopeDecorator],
 }

services/web/frontend/stories/source-editor/source-editor.stories.tsx

@@ -142,7 +142,7 @@ export const Visual = (args: any, { globals: { theme } }: any) => {
   })
   useMeta({
     'ol-showSymbolPalette': true,
-    'ol-mathJax3Path': 'https://unpkg.com/mathjax@3.2.2/es5/tex-svg-full.js',
+    'ol-mathJaxPath': 'https://unpkg.com/mathjax@3.2.2/es5/tex-svg-full.js',
     'ol-inactiveTutorials': ['table-generator-promotion'],
     'ol-project_id': '63e21c07946dd8c76505f85a',
   })

services/web/package.json

@@ -303,8 +303,7 @@
     "less": "^3.13.1",
     "less-loader": "^11.1.3",
     "match-sorter": "^6.2.0",
-    "mathjax": "^2.7.9",
-    "mathjax-3": "npm:mathjax@^3.2.2",
+    "mathjax": "^3.2.2",
     "mensch": "^0.3.4",
     "mini-css-extract-plugin": "^2.7.6",
     "mocha": "^10.2.0",

services/web/webpack.config.js

@@ -64,7 +64,6 @@ function getModuleDirectory(moduleName) {
 }
 
 const mathjaxDir = getModuleDirectory('mathjax')
-const mathjax3Dir = getModuleDirectory('mathjax-3')
 
 const pdfjsVersions = ['pdfjs-dist213', 'pdfjs-dist401']
 
@@ -77,13 +76,6 @@ if (MATHJAX_VERSION !== PackageVersions.version.mathjax) {
   )
 }
 
-const MATHJAX_3_VERSION = require('mathjax-3/package.json').version
-if (MATHJAX_3_VERSION !== PackageVersions.version['mathjax-3']) {
-  throw new Error(
-    '"mathjax-3" version de-synced, update services/web/app/src/infrastructure/PackageVersions.js'
-  )
-}
-
 module.exports = {
   // Defines the "entry point(s)" for the application - i.e. the file which
   // bootstraps the application
@@ -277,57 +269,38 @@ module.exports = {
         // https://www.npmjs.com/package/mathjax#user-content-hosting-your-own-copy-of-the-mathjax-components
         {
           from: 'es5/tex-svg-full.js',
-          to: `js/libs/mathjax-3-${PackageVersions.version['mathjax-3']}/es5`,
+          to: `js/libs/mathjax-${PackageVersions.version.mathjax}/es5`,
           toType: 'dir',
-          context: mathjax3Dir,
+          context: mathjaxDir,
         },
         {
           from: 'es5/input/tex/extensions/**/*.js',
-          to: `js/libs/mathjax-3-${PackageVersions.version['mathjax-3']}`,
+          to: `js/libs/mathjax-${PackageVersions.version.mathjax}`,
           toType: 'dir',
-          context: mathjax3Dir,
+          context: mathjaxDir,
         },
         {
           from: 'es5/ui/**/*',
-          to: `js/libs/mathjax-3-${PackageVersions.version['mathjax-3']}`,
+          to: `js/libs/mathjax-${PackageVersions.version.mathjax}`,
           toType: 'dir',
-          context: mathjax3Dir,
-        },
-        { from: 'MathJax.js', to: 'js/libs/mathjax', context: mathjaxDir },
-        { from: 'config/**/*', to: 'js/libs/mathjax', context: mathjaxDir },
-        {
-          from: 'extensions/**/*',
-          globOptions: {
-            // https://github.com/mathjax/MathJax/issues/2403
-            ignore: ['**/mathmaps/*.js'],
-          },
-          to: 'js/libs/mathjax',
           context: mathjaxDir,
         },
         {
-          from: 'localization/en/**/*',
-          to: 'js/libs/mathjax',
-          context: mathjaxDir,
-        },
-        {
-          from: 'jax/output/HTML-CSS/fonts/TeX/**/*',
-          to: 'js/libs/mathjax',
-          context: mathjaxDir,
-        },
-        {
-          from: 'jax/output/HTML-CSS/**/*.js',
-          to: 'js/libs/mathjax',
+          from: 'es5/a11y/**/*',
+          to: `js/libs/mathjax-${PackageVersions.version.mathjax}`,
+          toType: 'dir',
           context: mathjaxDir,
         },
         {
-          from: 'jax/element/**/*',
-          to: 'js/libs/mathjax',
+          from: 'es5/input/mml.js',
+          to: `js/libs/mathjax-${PackageVersions.version.mathjax}/es5/input`,
+          toType: 'dir',
           context: mathjaxDir,
         },
-        { from: 'jax/input/**/*', to: 'js/libs/mathjax', context: mathjaxDir },
         {
-          from: 'fonts/HTML-CSS/TeX/woff/*',
-          to: 'js/libs/mathjax',
+          from: 'es5/sre/**/*',
+          to: `js/libs/mathjax-${PackageVersions.version.mathjax}`,
+          toType: 'dir',
           context: mathjaxDir,
         },
         ...pdfjsVersions.flatMap(version => {