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fix(expo): prevent crash when importing @clerk/expo in web environments - #8066

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fix(expo): prevent crash when importing @clerk/expo in web environments#8066
brkalow merged 3 commits into
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@chriscaninchriscanin commented Mar 13, 2026•
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Summary

  • Fixes @clerk/expo crashing with Cannot read properties of undefined (reading 'get') when used in Expo web environments
  • The crash occurs because TurboModuleRegistry from react-native is undefined on web (react-native-web), and NativeClerkModule.ts calls TurboModuleRegistry.get('ClerkExpo') at module evaluation time — before any runtime guards can protect against it
  • Adds .web.ts variants for NativeClerkModule (exports null) and polyfills (empty — browsers have native URL and base64), following the existing pattern used by singleton.web.ts

Error:Uncaught Error: Cannot read properties of undefined (reading 'get') at NativeClerkModule.js

Test plan

  • Verify @clerk/expo no longer crashes when bundled for web (Expo web / react-native-web)
  • Verify native (iOS/Android) functionality is unaffected — TurboModuleRegistry.get() still runs on native via the original .ts file
  • Verify hooks (useSignIn, useSSO, useAuth) work correctly on web

Summary by CodeRabbit

  • Bug Fixes
    • Fixed web crashes in the Expo package by improving native module import handling and providing proper fallback behavior when modules are unavailable on web platforms.

@chriscanin
fix(expo): prevent crash when importing @clerk/expo in web environments
18ccf31
Add .web.ts variants for NativeClerkModule spec and polyfills so the
bundler skips TurboModuleRegistry and react-native-url-polyfill on web.
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Latest commit: a4f23d2

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package
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📒 Files selected for processing (1)
  • packages/expo/src/specs/NativeClerkModule.ts
📝 Walkthrough

Walkthrough

A patch is being introduced to address web crashes in the Clerk Expo package. The changes include adding a new changelog entry documenting the fix, creating a new web-specific polyfills file that indicates no polyfills are required in web environments, and modifying the NativeClerkModule to use optional chaining and nullish coalescing when accessing the TurboModuleRegistry, allowing it to return null when the registry is unavailable rather than throwing an error.

🚥 Pre-merge checks | ✅ 3
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Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
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Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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@chriscanin
fix(expo): use optional chaining for TurboModuleRegistry on web
0c88601
Replace .web.ts approach with optional chaining in the original spec
file. This avoids TypeScript build issues from moduleSuffixes while
still preventing the crash when TurboModuleRegistry is undefined on web.
@chriscanin

chriscanin commented Mar 13, 2026•
edited
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Screenshot 2026-03-13 at 9 07 32 AMScreenshot 2026-03-13 at 9 10 34 AM

I was able to reproduce Yu's error, and this is a screenshot of before and after from this fix.

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@clerk/agent-toolkit

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@clerk/astro

npm i https://pkg.pr.new/@clerk/astro@8066

@clerk/backend

npm i https://pkg.pr.new/@clerk/backend@8066

@clerk/chrome-extension

npm i https://pkg.pr.new/@clerk/chrome-extension@8066

@clerk/clerk-js

npm i https://pkg.pr.new/@clerk/clerk-js@8066

@clerk/dev-cli

npm i https://pkg.pr.new/@clerk/dev-cli@8066

@clerk/expo

npm i https://pkg.pr.new/@clerk/expo@8066

@clerk/expo-passkeys

npm i https://pkg.pr.new/@clerk/expo-passkeys@8066

@clerk/express

npm i https://pkg.pr.new/@clerk/express@8066

@clerk/fastify

npm i https://pkg.pr.new/@clerk/fastify@8066

@clerk/hono

npm i https://pkg.pr.new/@clerk/hono@8066

@clerk/localizations

npm i https://pkg.pr.new/@clerk/localizations@8066

@clerk/nextjs

npm i https://pkg.pr.new/@clerk/nextjs@8066

@clerk/nuxt

npm i https://pkg.pr.new/@clerk/nuxt@8066

@clerk/react

npm i https://pkg.pr.new/@clerk/react@8066

@clerk/react-router

npm i https://pkg.pr.new/@clerk/react-router@8066

@clerk/shared

npm i https://pkg.pr.new/@clerk/shared@8066

@clerk/tanstack-react-start

npm i https://pkg.pr.new/@clerk/tanstack-react-start@8066

@clerk/testing

npm i https://pkg.pr.new/@clerk/testing@8066

@clerk/ui

npm i https://pkg.pr.new/@clerk/ui@8066

@clerk/upgrade

npm i https://pkg.pr.new/@clerk/upgrade@8066

@clerk/vue

npm i https://pkg.pr.new/@clerk/vue@8066

commit: a4f23d2

@chriscanin
chriscanin requested a review from brkalowMarch 13, 2026 16:17
@chriscaninchriscanin self-assigned this Mar 13, 2026
@brkalow
brkalow merged commit 6b411b1 into mainMar 16, 2026
41 checks passed
@brkalow
brkalow deleted the chris/fix-expo-web-crash branch March 16, 2026 17:03
@clerk-cookieclerk-cookie mentioned this pull request Mar 16, 2026
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@chriscaninchriscanin mentioned this pull request Mar 18, 2026
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wobsoriano pushed a commit that referenced this pull request Mar 26, 2026
@chriscanin@wobsoriano
fix(expo): prevent crash when importing @clerk/expo in web environmen…
cd7c23a
…ts (#8066)
@coderabbitaicoderabbitaiBot mentioned this pull request Aug 9, 2026
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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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fix(expo): prevent crash when importing @clerk/expo in web environments by chriscanin · Pull Request #8066 · clerk/javascript · GitHub
Skip to content
fix(expo): prevent crash when importing @clerk/expo in web environments - #8066
Merged
brkalow merged 3 commits into
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chris/fix-expo-web-crash
Mar 16, 2026
Merged
fix(expo): prevent crash when importing @clerk/expo in web environments#8066
brkalow merged 3 commits into
mainfrom 
chris/fix-expo-web-crash
Conversation
@chriscanin
@chriscaninchriscanin
commented
Mar 13, 2026•

edited by coderabbitai
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Summary
  • Fixes @clerk/expo crashing with Cannot read properties of undefined (reading 'get') when used in Expo web environments
  • The crash occurs because TurboModuleRegistry from react-native is undefined on web (react-native-web), and NativeClerkModule.ts calls TurboModuleRegistry.get('ClerkExpo') at module evaluation time — before any runtime guards can protect against it
  • Adds .web.ts variants for NativeClerkModule (exports null) and polyfills (empty — browsers have native URL and base64), following the existing pattern used by singleton.web.ts
Error:Uncaught Error: Cannot read properties of undefined (reading 'get') at NativeClerkModule.js
Test plan
  •  Verify @clerk/expo no longer crashes when bundled for web (Expo web / react-native-web)
  •  Verify native (iOS/Android) functionality is unaffected — TurboModuleRegistry.get() still runs on native via the original .ts file
  •  Verify hooks (useSignIn, useSSO, useAuth) work correctly on web
Summary by CodeRabbit
  • Bug Fixes
    • Fixed web crashes in the Expo package by improving native module import handling and providing proper fallback behavior when modules are unavailable on web platforms.
@chriscanin
fix(expo): prevent crash when importing @clerk/expo in web environments
18ccf31
Add .web.ts variants for NativeClerkModule spec and polyfills so the
bundler skips TurboModuleRegistry and react-native-url-polyfill on web.
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Mar 13, 2026•

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🦋 Changeset detected
Latest commit: a4f23d2
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@clerk/expoPatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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No actionable comments were generated in the recent review. 🎉
ℹ️ Recent review info
⚙️ Run configuration
Configuration used: Repository YAML (base), Organization UI (inherited)
Review profile: ASSERTIVE
Plan: Pro
Run ID: 8bcbe78d-4d4b-443b-ad66-6d66d6a0400d
📥 Commits
Reviewing files that changed from the base of the PR and between 18ccf31 and 0c88601.
📒 Files selected for processing (1)
  • packages/expo/src/specs/NativeClerkModule.ts
📝 Walkthrough
Walkthrough
A patch is being introduced to address web crashes in the Clerk Expo package. The changes include adding a new changelog entry documenting the fix, creating a new web-specific polyfills file that indicates no polyfills are required in web environments, and modifying the NativeClerkModule to use optional chaining and nullish coalescing when accessing the TurboModuleRegistry, allowing it to return null when the registry is unavailable rather than throwing an error.
🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check nameStatusExplanation
Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title directly and clearly describes the main fix: preventing crashes when importing @clerk/expo in web environments, which is the core objective of the changeset.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
✏️ Tip: You can configure your own custom pre-merge checks in the settings.
📝 Coding Plan
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❤️ Share
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@chriscanin
fix(expo): use optional chaining for TurboModuleRegistry on web
0c88601
Replace .web.ts approach with optional chaining in the original spec
file. This avoids TypeScript build issues from moduleSuffixes while
still preventing the crash when TurboModuleRegistry is undefined on web.
@chriscanin
chriscanin
commented
Mar 13, 2026•

edited

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Screenshot 2026-03-13 at 9 07 32 AMScreenshot 2026-03-13 at 9 10 34 AM
I was able to reproduce Yu's error, and this is a screenshot of before and after from this fix.
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@clerk/agent-toolkit
npm i https://pkg.pr.new/@clerk/agent-toolkit@8066

@clerk/astro
npm i https://pkg.pr.new/@clerk/astro@8066

@clerk/backend
npm i https://pkg.pr.new/@clerk/backend@8066

@clerk/chrome-extension
npm i https://pkg.pr.new/@clerk/chrome-extension@8066

@clerk/clerk-js
npm i https://pkg.pr.new/@clerk/clerk-js@8066

@clerk/dev-cli
npm i https://pkg.pr.new/@clerk/dev-cli@8066

@clerk/expo
npm i https://pkg.pr.new/@clerk/expo@8066

@clerk/expo-passkeys
npm i https://pkg.pr.new/@clerk/expo-passkeys@8066

@clerk/express
npm i https://pkg.pr.new/@clerk/express@8066

@clerk/fastify
npm i https://pkg.pr.new/@clerk/fastify@8066

@clerk/hono
npm i https://pkg.pr.new/@clerk/hono@8066

@clerk/localizations
npm i https://pkg.pr.new/@clerk/localizations@8066

@clerk/nextjs
npm i https://pkg.pr.new/@clerk/nextjs@8066

@clerk/nuxt
npm i https://pkg.pr.new/@clerk/nuxt@8066

@clerk/react
npm i https://pkg.pr.new/@clerk/react@8066

@clerk/react-router
npm i https://pkg.pr.new/@clerk/react-router@8066

@clerk/shared
npm i https://pkg.pr.new/@clerk/shared@8066

@clerk/tanstack-react-start
npm i https://pkg.pr.new/@clerk/tanstack-react-start@8066

@clerk/testing
npm i https://pkg.pr.new/@clerk/testing@8066

@clerk/ui
npm i https://pkg.pr.new/@clerk/ui@8066

@clerk/upgrade
npm i https://pkg.pr.new/@clerk/upgrade@8066

@clerk/vue
npm i https://pkg.pr.new/@clerk/vue@8066

commit: a4f23d2
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wobsoriano pushed a commit
that referenced
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@chriscanin@wobsoriano
fix(expo): prevent crash when importing @clerk/expo in web environmen…
cd7c23a
…ts (#8066)
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, 'i');
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fix(expo): prevent crash when importing @clerk/expo in web environments by chriscanin · Pull Request #8066 · clerk/javascript · GitHub
Skip to content
fix(expo): prevent crash when importing @clerk/expo in web environments - #8066
Merged
brkalow merged 3 commits into
mainfrom 
chris/fix-expo-web-crash
Mar 16, 2026
Merged
fix(expo): prevent crash when importing @clerk/expo in web environments#8066
brkalow merged 3 commits into
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@chriscanin
@chriscaninchriscanin
commented
Mar 13, 2026•

edited by coderabbitai
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Summary
  • Fixes @clerk/expo crashing with Cannot read properties of undefined (reading 'get') when used in Expo web environments
  • The crash occurs because TurboModuleRegistry from react-native is undefined on web (react-native-web), and NativeClerkModule.ts calls TurboModuleRegistry.get('ClerkExpo') at module evaluation time — before any runtime guards can protect against it
  • Adds .web.ts variants for NativeClerkModule (exports null) and polyfills (empty — browsers have native URL and base64), following the existing pattern used by singleton.web.ts
Error:Uncaught Error: Cannot read properties of undefined (reading 'get') at NativeClerkModule.js
Test plan
  •  Verify @clerk/expo no longer crashes when bundled for web (Expo web / react-native-web)
  •  Verify native (iOS/Android) functionality is unaffected — TurboModuleRegistry.get() still runs on native via the original .ts file
  •  Verify hooks (useSignIn, useSSO, useAuth) work correctly on web
Summary by CodeRabbit
  • Bug Fixes
    • Fixed web crashes in the Expo package by improving native module import handling and providing proper fallback behavior when modules are unavailable on web platforms.
@chriscanin
fix(expo): prevent crash when importing @clerk/expo in web environments
18ccf31
Add .web.ts variants for NativeClerkModule spec and polyfills so the
bundler skips TurboModuleRegistry and react-native-url-polyfill on web.
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🦋 Changeset detected
Latest commit: a4f23d2
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@clerk/expoPatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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No actionable comments were generated in the recent review. 🎉
ℹ️ Recent review info
⚙️ Run configuration
Configuration used: Repository YAML (base), Organization UI (inherited)
Review profile: ASSERTIVE
Plan: Pro
Run ID: 8bcbe78d-4d4b-443b-ad66-6d66d6a0400d
📥 Commits
Reviewing files that changed from the base of the PR and between 18ccf31 and 0c88601.
📒 Files selected for processing (1)
  • packages/expo/src/specs/NativeClerkModule.ts
📝 Walkthrough
Walkthrough
A patch is being introduced to address web crashes in the Clerk Expo package. The changes include adding a new changelog entry documenting the fix, creating a new web-specific polyfills file that indicates no polyfills are required in web environments, and modifying the NativeClerkModule to use optional chaining and nullish coalescing when accessing the TurboModuleRegistry, allowing it to return null when the registry is unavailable rather than throwing an error.
🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check nameStatusExplanation
Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title directly and clearly describes the main fix: preventing crashes when importing @clerk/expo in web environments, which is the core objective of the changeset.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
✏️ Tip: You can configure your own custom pre-merge checks in the settings.
📝 Coding Plan
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@chriscanin
fix(expo): use optional chaining for TurboModuleRegistry on web
0c88601
Replace .web.ts approach with optional chaining in the original spec
file. This avoids TypeScript build issues from moduleSuffixes while
still preventing the crash when TurboModuleRegistry is undefined on web.
@chriscanin
chriscanin
commented
Mar 13, 2026•

edited

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ContributorAuthor
Screenshot 2026-03-13 at 9 07 32 AMScreenshot 2026-03-13 at 9 10 34 AM
I was able to reproduce Yu's error, and this is a screenshot of before and after from this fix.
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edited

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@clerk/agent-toolkit
npm i https://pkg.pr.new/@clerk/agent-toolkit@8066

@clerk/astro
npm i https://pkg.pr.new/@clerk/astro@8066

@clerk/backend
npm i https://pkg.pr.new/@clerk/backend@8066

@clerk/chrome-extension
npm i https://pkg.pr.new/@clerk/chrome-extension@8066

@clerk/clerk-js
npm i https://pkg.pr.new/@clerk/clerk-js@8066

@clerk/dev-cli
npm i https://pkg.pr.new/@clerk/dev-cli@8066

@clerk/expo
npm i https://pkg.pr.new/@clerk/expo@8066

@clerk/expo-passkeys
npm i https://pkg.pr.new/@clerk/expo-passkeys@8066

@clerk/express
npm i https://pkg.pr.new/@clerk/express@8066

@clerk/fastify
npm i https://pkg.pr.new/@clerk/fastify@8066

@clerk/hono
npm i https://pkg.pr.new/@clerk/hono@8066

@clerk/localizations
npm i https://pkg.pr.new/@clerk/localizations@8066

@clerk/nextjs
npm i https://pkg.pr.new/@clerk/nextjs@8066

@clerk/nuxt
npm i https://pkg.pr.new/@clerk/nuxt@8066

@clerk/react
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@clerk/react-router
npm i https://pkg.pr.new/@clerk/react-router@8066

@clerk/shared
npm i https://pkg.pr.new/@clerk/shared@8066

@clerk/tanstack-react-start
npm i https://pkg.pr.new/@clerk/tanstack-react-start@8066

@clerk/testing
npm i https://pkg.pr.new/@clerk/testing@8066

@clerk/ui
npm i https://pkg.pr.new/@clerk/ui@8066

@clerk/upgrade
npm i https://pkg.pr.new/@clerk/upgrade@8066

@clerk/vue
npm i https://pkg.pr.new/@clerk/vue@8066

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fix(expo): prevent crash when importing @clerk/expo in web environmen…
cd7c23a
…ts (#8066)
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
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terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
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style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
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observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
fix(expo): prevent crash when importing @clerk/expo in web environments by chriscanin · Pull Request #8066 · clerk/javascript · GitHub
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fix(expo): prevent crash when importing @clerk/expo in web environments - #8066
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fix(expo): prevent crash when importing @clerk/expo in web environments#8066
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@chriscanin
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Mar 13, 2026•

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Summary
  • Fixes @clerk/expo crashing with Cannot read properties of undefined (reading 'get') when used in Expo web environments
  • The crash occurs because TurboModuleRegistry from react-native is undefined on web (react-native-web), and NativeClerkModule.ts calls TurboModuleRegistry.get('ClerkExpo') at module evaluation time — before any runtime guards can protect against it
  • Adds .web.ts variants for NativeClerkModule (exports null) and polyfills (empty — browsers have native URL and base64), following the existing pattern used by singleton.web.ts
Error:Uncaught Error: Cannot read properties of undefined (reading 'get') at NativeClerkModule.js
Test plan
  •  Verify @clerk/expo no longer crashes when bundled for web (Expo web / react-native-web)
  •  Verify native (iOS/Android) functionality is unaffected — TurboModuleRegistry.get() still runs on native via the original .ts file
  •  Verify hooks (useSignIn, useSSO, useAuth) work correctly on web
Summary by CodeRabbit
  • Bug Fixes
    • Fixed web crashes in the Expo package by improving native module import handling and providing proper fallback behavior when modules are unavailable on web platforms.
@chriscanin
fix(expo): prevent crash when importing @clerk/expo in web environments
18ccf31
Add .web.ts variants for NativeClerkModule spec and polyfills so the
bundler skips TurboModuleRegistry and react-native-url-polyfill on web.
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🦋 Changeset detected
Latest commit: a4f23d2
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
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📒 Files selected for processing (1)
  • packages/expo/src/specs/NativeClerkModule.ts
📝 Walkthrough
Walkthrough
A patch is being introduced to address web crashes in the Clerk Expo package. The changes include adding a new changelog entry documenting the fix, creating a new web-specific polyfills file that indicates no polyfills are required in web environments, and modifying the NativeClerkModule to use optional chaining and nullish coalescing when accessing the TurboModuleRegistry, allowing it to return null when the registry is unavailable rather than throwing an error.
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@chriscanin
fix(expo): use optional chaining for TurboModuleRegistry on web
0c88601
Replace .web.ts approach with optional chaining in the original spec
file. This avoids TypeScript build issues from moduleSuffixes while
still preventing the crash when TurboModuleRegistry is undefined on web.
@chriscanin
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Screenshot 2026-03-13 at 9 07 32 AMScreenshot 2026-03-13 at 9 10 34 AM
I was able to reproduce Yu's error, and this is a screenshot of before and after from this fix.
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@clerk/agent-toolkit
npm i https://pkg.pr.new/@clerk/agent-toolkit@8066

@clerk/astro
npm i https://pkg.pr.new/@clerk/astro@8066

@clerk/backend
npm i https://pkg.pr.new/@clerk/backend@8066

@clerk/chrome-extension
npm i https://pkg.pr.new/@clerk/chrome-extension@8066

@clerk/clerk-js
npm i https://pkg.pr.new/@clerk/clerk-js@8066

@clerk/dev-cli
npm i https://pkg.pr.new/@clerk/dev-cli@8066

@clerk/expo
npm i https://pkg.pr.new/@clerk/expo@8066

@clerk/expo-passkeys
npm i https://pkg.pr.new/@clerk/expo-passkeys@8066

@clerk/express
npm i https://pkg.pr.new/@clerk/express@8066

@clerk/fastify
npm i https://pkg.pr.new/@clerk/fastify@8066

@clerk/hono
npm i https://pkg.pr.new/@clerk/hono@8066

@clerk/localizations
npm i https://pkg.pr.new/@clerk/localizations@8066

@clerk/nextjs
npm i https://pkg.pr.new/@clerk/nextjs@8066

@clerk/nuxt
npm i https://pkg.pr.new/@clerk/nuxt@8066

@clerk/react
npm i https://pkg.pr.new/@clerk/react@8066

@clerk/react-router
npm i https://pkg.pr.new/@clerk/react-router@8066

@clerk/shared
npm i https://pkg.pr.new/@clerk/shared@8066

@clerk/tanstack-react-start
npm i https://pkg.pr.new/@clerk/tanstack-react-start@8066

@clerk/testing
npm i https://pkg.pr.new/@clerk/testing@8066

@clerk/ui
npm i https://pkg.pr.new/@clerk/ui@8066

@clerk/upgrade
npm i https://pkg.pr.new/@clerk/upgrade@8066

@clerk/vue
npm i https://pkg.pr.new/@clerk/vue@8066

commit: a4f23d2
@chriscanin
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41 checks passed

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wobsoriano pushed a commit
that referenced
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@chriscanin@wobsoriano
fix(expo): prevent crash when importing @clerk/expo in web environmen…
cd7c23a
…ts (#8066)
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
fix(expo): prevent crash when importing @clerk/expo in web environments by chriscanin · Pull Request #8066 · clerk/javascript · GitHub
Skip to content
fix(expo): prevent crash when importing @clerk/expo in web environments - #8066
Merged
brkalow merged 3 commits into
mainfrom 
chris/fix-expo-web-crash
Mar 16, 2026
Merged
fix(expo): prevent crash when importing @clerk/expo in web environments#8066
brkalow merged 3 commits into
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@chriscanin
@chriscaninchriscanin
commented
Mar 13, 2026•

edited by coderabbitai
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Summary
  • Fixes @clerk/expo crashing with Cannot read properties of undefined (reading 'get') when used in Expo web environments
  • The crash occurs because TurboModuleRegistry from react-native is undefined on web (react-native-web), and NativeClerkModule.ts calls TurboModuleRegistry.get('ClerkExpo') at module evaluation time — before any runtime guards can protect against it
  • Adds .web.ts variants for NativeClerkModule (exports null) and polyfills (empty — browsers have native URL and base64), following the existing pattern used by singleton.web.ts
Error:Uncaught Error: Cannot read properties of undefined (reading 'get') at NativeClerkModule.js
Test plan
  •  Verify @clerk/expo no longer crashes when bundled for web (Expo web / react-native-web)
  •  Verify native (iOS/Android) functionality is unaffected — TurboModuleRegistry.get() still runs on native via the original .ts file
  •  Verify hooks (useSignIn, useSSO, useAuth) work correctly on web
Summary by CodeRabbit
  • Bug Fixes
    • Fixed web crashes in the Expo package by improving native module import handling and providing proper fallback behavior when modules are unavailable on web platforms.
@chriscanin
fix(expo): prevent crash when importing @clerk/expo in web environments
18ccf31
Add .web.ts variants for NativeClerkModule spec and polyfills so the
bundler skips TurboModuleRegistry and react-native-url-polyfill on web.
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Mar 13, 2026•

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🦋 Changeset detected
Latest commit: a4f23d2
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@clerk/expoPatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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No actionable comments were generated in the recent review. 🎉
ℹ️ Recent review info
⚙️ Run configuration
Configuration used: Repository YAML (base), Organization UI (inherited)
Review profile: ASSERTIVE
Plan: Pro
Run ID: 8bcbe78d-4d4b-443b-ad66-6d66d6a0400d
📥 Commits
Reviewing files that changed from the base of the PR and between 18ccf31 and 0c88601.
📒 Files selected for processing (1)
  • packages/expo/src/specs/NativeClerkModule.ts
📝 Walkthrough
Walkthrough
A patch is being introduced to address web crashes in the Clerk Expo package. The changes include adding a new changelog entry documenting the fix, creating a new web-specific polyfills file that indicates no polyfills are required in web environments, and modifying the NativeClerkModule to use optional chaining and nullish coalescing when accessing the TurboModuleRegistry, allowing it to return null when the registry is unavailable rather than throwing an error.
🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check nameStatusExplanation
Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title directly and clearly describes the main fix: preventing crashes when importing @clerk/expo in web environments, which is the core objective of the changeset.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
✏️ Tip: You can configure your own custom pre-merge checks in the settings.
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@chriscanin
fix(expo): use optional chaining for TurboModuleRegistry on web
0c88601
Replace .web.ts approach with optional chaining in the original spec
file. This avoids TypeScript build issues from moduleSuffixes while
still preventing the crash when TurboModuleRegistry is undefined on web.
@chriscanin
chriscanin
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Mar 13, 2026•

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Screenshot 2026-03-13 at 9 07 32 AMScreenshot 2026-03-13 at 9 10 34 AM
I was able to reproduce Yu's error, and this is a screenshot of before and after from this fix.
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@clerk/agent-toolkit
npm i https://pkg.pr.new/@clerk/agent-toolkit@8066

@clerk/astro
npm i https://pkg.pr.new/@clerk/astro@8066

@clerk/backend
npm i https://pkg.pr.new/@clerk/backend@8066

@clerk/chrome-extension
npm i https://pkg.pr.new/@clerk/chrome-extension@8066

@clerk/clerk-js
npm i https://pkg.pr.new/@clerk/clerk-js@8066

@clerk/dev-cli
npm i https://pkg.pr.new/@clerk/dev-cli@8066

@clerk/expo
npm i https://pkg.pr.new/@clerk/expo@8066

@clerk/expo-passkeys
npm i https://pkg.pr.new/@clerk/expo-passkeys@8066

@clerk/express
npm i https://pkg.pr.new/@clerk/express@8066

@clerk/fastify
npm i https://pkg.pr.new/@clerk/fastify@8066

@clerk/hono
npm i https://pkg.pr.new/@clerk/hono@8066

@clerk/localizations
npm i https://pkg.pr.new/@clerk/localizations@8066

@clerk/nextjs
npm i https://pkg.pr.new/@clerk/nextjs@8066

@clerk/nuxt
npm i https://pkg.pr.new/@clerk/nuxt@8066

@clerk/react
npm i https://pkg.pr.new/@clerk/react@8066

@clerk/react-router
npm i https://pkg.pr.new/@clerk/react-router@8066

@clerk/shared
npm i https://pkg.pr.new/@clerk/shared@8066

@clerk/tanstack-react-start
npm i https://pkg.pr.new/@clerk/tanstack-react-start@8066

@clerk/testing
npm i https://pkg.pr.new/@clerk/testing@8066

@clerk/ui
npm i https://pkg.pr.new/@clerk/ui@8066

@clerk/upgrade
npm i https://pkg.pr.new/@clerk/upgrade@8066

@clerk/vue
npm i https://pkg.pr.new/@clerk/vue@8066

commit: a4f23d2
@chriscanin
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requested a review
from brkalowMarch 13, 2026 16:17
@chriscaninchriscanin
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Mar 13, 2026
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41 checks passed

@brkalow
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deleted the

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March 16, 2026 17:03
@clerk-cookieclerk-cookie
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2 tasks
wobsoriano pushed a commit
that referenced
this pull request
Mar 26, 2026
@chriscanin@wobsoriano
fix(expo): prevent crash when importing @clerk/expo in web environmen…
cd7c23a
…ts (#8066)
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
fix(expo): prevent crash when importing @clerk/expo in web environments by chriscanin · Pull Request #8066 · clerk/javascript · GitHub
Skip to content
fix(expo): prevent crash when importing @clerk/expo in web environments - #8066
Merged
brkalow merged 3 commits into
mainfrom 
chris/fix-expo-web-crash
Mar 16, 2026
Merged
fix(expo): prevent crash when importing @clerk/expo in web environments#8066
brkalow merged 3 commits into
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chris/fix-expo-web-crash
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@chriscanin
@chriscaninchriscanin
commented
Mar 13, 2026•

edited by coderabbitai
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Summary
  • Fixes @clerk/expo crashing with Cannot read properties of undefined (reading 'get') when used in Expo web environments
  • The crash occurs because TurboModuleRegistry from react-native is undefined on web (react-native-web), and NativeClerkModule.ts calls TurboModuleRegistry.get('ClerkExpo') at module evaluation time — before any runtime guards can protect against it
  • Adds .web.ts variants for NativeClerkModule (exports null) and polyfills (empty — browsers have native URL and base64), following the existing pattern used by singleton.web.ts
Error:Uncaught Error: Cannot read properties of undefined (reading 'get') at NativeClerkModule.js
Test plan
  •  Verify @clerk/expo no longer crashes when bundled for web (Expo web / react-native-web)
  •  Verify native (iOS/Android) functionality is unaffected — TurboModuleRegistry.get() still runs on native via the original .ts file
  •  Verify hooks (useSignIn, useSSO, useAuth) work correctly on web
Summary by CodeRabbit
  • Bug Fixes
    • Fixed web crashes in the Expo package by improving native module import handling and providing proper fallback behavior when modules are unavailable on web platforms.
@chriscanin
fix(expo): prevent crash when importing @clerk/expo in web environments
18ccf31
Add .web.ts variants for NativeClerkModule spec and polyfills so the
bundler skips TurboModuleRegistry and react-native-url-polyfill on web.
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Latest commit: a4f23d2
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
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No actionable comments were generated in the recent review. 🎉
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Review profile: ASSERTIVE
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Run ID: 8bcbe78d-4d4b-443b-ad66-6d66d6a0400d
📥 Commits
Reviewing files that changed from the base of the PR and between 18ccf31 and 0c88601.
📒 Files selected for processing (1)
  • packages/expo/src/specs/NativeClerkModule.ts
📝 Walkthrough
Walkthrough
A patch is being introduced to address web crashes in the Clerk Expo package. The changes include adding a new changelog entry documenting the fix, creating a new web-specific polyfills file that indicates no polyfills are required in web environments, and modifying the NativeClerkModule to use optional chaining and nullish coalescing when accessing the TurboModuleRegistry, allowing it to return null when the registry is unavailable rather than throwing an error.
🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check nameStatusExplanation
Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title directly and clearly describes the main fix: preventing crashes when importing @clerk/expo in web environments, which is the core objective of the changeset.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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@chriscanin
fix(expo): use optional chaining for TurboModuleRegistry on web
0c88601
Replace .web.ts approach with optional chaining in the original spec
file. This avoids TypeScript build issues from moduleSuffixes while
still preventing the crash when TurboModuleRegistry is undefined on web.
@chriscanin
chriscanin
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Mar 13, 2026•

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Screenshot 2026-03-13 at 9 07 32 AMScreenshot 2026-03-13 at 9 10 34 AM
I was able to reproduce Yu's error, and this is a screenshot of before and after from this fix.
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@clerk/agent-toolkit
npm i https://pkg.pr.new/@clerk/agent-toolkit@8066

@clerk/astro
npm i https://pkg.pr.new/@clerk/astro@8066

@clerk/backend
npm i https://pkg.pr.new/@clerk/backend@8066

@clerk/chrome-extension
npm i https://pkg.pr.new/@clerk/chrome-extension@8066

@clerk/clerk-js
npm i https://pkg.pr.new/@clerk/clerk-js@8066

@clerk/dev-cli
npm i https://pkg.pr.new/@clerk/dev-cli@8066

@clerk/expo
npm i https://pkg.pr.new/@clerk/expo@8066

@clerk/expo-passkeys
npm i https://pkg.pr.new/@clerk/expo-passkeys@8066

@clerk/express
npm i https://pkg.pr.new/@clerk/express@8066

@clerk/fastify
npm i https://pkg.pr.new/@clerk/fastify@8066

@clerk/hono
npm i https://pkg.pr.new/@clerk/hono@8066

@clerk/localizations
npm i https://pkg.pr.new/@clerk/localizations@8066

@clerk/nextjs
npm i https://pkg.pr.new/@clerk/nextjs@8066

@clerk/nuxt
npm i https://pkg.pr.new/@clerk/nuxt@8066

@clerk/react
npm i https://pkg.pr.new/@clerk/react@8066

@clerk/react-router
npm i https://pkg.pr.new/@clerk/react-router@8066

@clerk/shared
npm i https://pkg.pr.new/@clerk/shared@8066

@clerk/tanstack-react-start
npm i https://pkg.pr.new/@clerk/tanstack-react-start@8066

@clerk/testing
npm i https://pkg.pr.new/@clerk/testing@8066

@clerk/ui
npm i https://pkg.pr.new/@clerk/ui@8066

@clerk/upgrade
npm i https://pkg.pr.new/@clerk/upgrade@8066

@clerk/vue
npm i https://pkg.pr.new/@clerk/vue@8066

commit: a4f23d2
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Mar 26, 2026
@chriscanin@wobsoriano
fix(expo): prevent crash when importing @clerk/expo in web environmen…
cd7c23a
…ts (#8066)
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
fix(expo): prevent crash when importing @clerk/expo in web environments by chriscanin · Pull Request #8066 · clerk/javascript · GitHub
Skip to content
fix(expo): prevent crash when importing @clerk/expo in web environments - #8066
Merged
brkalow merged 3 commits into
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chris/fix-expo-web-crash
Mar 16, 2026
Merged
fix(expo): prevent crash when importing @clerk/expo in web environments#8066
brkalow merged 3 commits into
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chris/fix-expo-web-crash
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@chriscanin
@chriscaninchriscanin
commented
Mar 13, 2026•

edited by coderabbitai
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Summary
  • Fixes @clerk/expo crashing with Cannot read properties of undefined (reading 'get') when used in Expo web environments
  • The crash occurs because TurboModuleRegistry from react-native is undefined on web (react-native-web), and NativeClerkModule.ts calls TurboModuleRegistry.get('ClerkExpo') at module evaluation time — before any runtime guards can protect against it
  • Adds .web.ts variants for NativeClerkModule (exports null) and polyfills (empty — browsers have native URL and base64), following the existing pattern used by singleton.web.ts
Error:Uncaught Error: Cannot read properties of undefined (reading 'get') at NativeClerkModule.js
Test plan
  •  Verify @clerk/expo no longer crashes when bundled for web (Expo web / react-native-web)
  •  Verify native (iOS/Android) functionality is unaffected — TurboModuleRegistry.get() still runs on native via the original .ts file
  •  Verify hooks (useSignIn, useSSO, useAuth) work correctly on web
Summary by CodeRabbit
  • Bug Fixes
    • Fixed web crashes in the Expo package by improving native module import handling and providing proper fallback behavior when modules are unavailable on web platforms.
@chriscanin
fix(expo): prevent crash when importing @clerk/expo in web environments
18ccf31
Add .web.ts variants for NativeClerkModule spec and polyfills so the
bundler skips TurboModuleRegistry and react-native-url-polyfill on web.
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Mar 13, 2026•

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🦋 Changeset detected
Latest commit: a4f23d2
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@clerk/expoPatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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No actionable comments were generated in the recent review. 🎉
ℹ️ Recent review info
⚙️ Run configuration
Configuration used: Repository YAML (base), Organization UI (inherited)
Review profile: ASSERTIVE
Plan: Pro
Run ID: 8bcbe78d-4d4b-443b-ad66-6d66d6a0400d
📥 Commits
Reviewing files that changed from the base of the PR and between 18ccf31 and 0c88601.
📒 Files selected for processing (1)
  • packages/expo/src/specs/NativeClerkModule.ts
📝 Walkthrough
Walkthrough
A patch is being introduced to address web crashes in the Clerk Expo package. The changes include adding a new changelog entry documenting the fix, creating a new web-specific polyfills file that indicates no polyfills are required in web environments, and modifying the NativeClerkModule to use optional chaining and nullish coalescing when accessing the TurboModuleRegistry, allowing it to return null when the registry is unavailable rather than throwing an error.
🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check nameStatusExplanation
Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title directly and clearly describes the main fix: preventing crashes when importing @clerk/expo in web environments, which is the core objective of the changeset.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
✏️ Tip: You can configure your own custom pre-merge checks in the settings.
📝 Coding Plan
  •  Generate coding plan for human review comments
Warning
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❤️ Share
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@chriscanin
fix(expo): use optional chaining for TurboModuleRegistry on web
0c88601
Replace .web.ts approach with optional chaining in the original spec
file. This avoids TypeScript build issues from moduleSuffixes while
still preventing the crash when TurboModuleRegistry is undefined on web.
@chriscanin
chriscanin
commented
Mar 13, 2026•

edited

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Screenshot 2026-03-13 at 9 07 32 AMScreenshot 2026-03-13 at 9 10 34 AM
I was able to reproduce Yu's error, and this is a screenshot of before and after from this fix.
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edited

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@clerk/agent-toolkit
npm i https://pkg.pr.new/@clerk/agent-toolkit@8066

@clerk/astro
npm i https://pkg.pr.new/@clerk/astro@8066

@clerk/backend
npm i https://pkg.pr.new/@clerk/backend@8066

@clerk/chrome-extension
npm i https://pkg.pr.new/@clerk/chrome-extension@8066

@clerk/clerk-js
npm i https://pkg.pr.new/@clerk/clerk-js@8066

@clerk/dev-cli
npm i https://pkg.pr.new/@clerk/dev-cli@8066

@clerk/expo
npm i https://pkg.pr.new/@clerk/expo@8066

@clerk/expo-passkeys
npm i https://pkg.pr.new/@clerk/expo-passkeys@8066

@clerk/express
npm i https://pkg.pr.new/@clerk/express@8066

@clerk/fastify
npm i https://pkg.pr.new/@clerk/fastify@8066

@clerk/hono
npm i https://pkg.pr.new/@clerk/hono@8066

@clerk/localizations
npm i https://pkg.pr.new/@clerk/localizations@8066

@clerk/nextjs
npm i https://pkg.pr.new/@clerk/nextjs@8066

@clerk/nuxt
npm i https://pkg.pr.new/@clerk/nuxt@8066

@clerk/react
npm i https://pkg.pr.new/@clerk/react@8066

@clerk/react-router
npm i https://pkg.pr.new/@clerk/react-router@8066

@clerk/shared
npm i https://pkg.pr.new/@clerk/shared@8066

@clerk/tanstack-react-start
npm i https://pkg.pr.new/@clerk/tanstack-react-start@8066

@clerk/testing
npm i https://pkg.pr.new/@clerk/testing@8066

@clerk/ui
npm i https://pkg.pr.new/@clerk/ui@8066

@clerk/upgrade
npm i https://pkg.pr.new/@clerk/upgrade@8066

@clerk/vue
npm i https://pkg.pr.new/@clerk/vue@8066

commit: a4f23d2
@chriscanin
chriscanin
requested a review
from brkalowMarch 13, 2026 16:17
@chriscaninchriscanin
self-assigned this
Mar 13, 2026
@brkalow
brkalow
merged commit 6b411b1
into
mainMar 16, 2026

41 checks passed

@brkalow
brkalow
deleted the

chris/fix-expo-web-crash

branch
March 16, 2026 17:03
@clerk-cookieclerk-cookie
mentioned this pull request
Mar 16, 2026
 Merged

@chriscaninchriscanin
mentioned this pull request
Mar 18, 2026
 Merged

2 tasks
wobsoriano pushed a commit
that referenced
this pull request
Mar 26, 2026
@chriscanin@wobsoriano
fix(expo): prevent crash when importing @clerk/expo in web environmen…
cd7c23a
…ts (#8066)
@coderabbitaicoderabbitaiBot
mentioned this pull request
Aug 9, 2026
 Merged

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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
fix(expo): prevent crash when importing @clerk/expo in web environments by chriscanin · Pull Request #8066 · clerk/javascript · GitHub
Skip to content
fix(expo): prevent crash when importing @clerk/expo in web environments - #8066
Merged
brkalow merged 3 commits into
mainfrom 
chris/fix-expo-web-crash
Mar 16, 2026
Merged
fix(expo): prevent crash when importing @clerk/expo in web environments#8066
brkalow merged 3 commits into
mainfrom 
chris/fix-expo-web-crash
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@chriscanin
@chriscaninchriscanin
commented
Mar 13, 2026•

edited by coderabbitai
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Summary
  • Fixes @clerk/expo crashing with Cannot read properties of undefined (reading 'get') when used in Expo web environments
  • The crash occurs because TurboModuleRegistry from react-native is undefined on web (react-native-web), and NativeClerkModule.ts calls TurboModuleRegistry.get('ClerkExpo') at module evaluation time — before any runtime guards can protect against it
  • Adds .web.ts variants for NativeClerkModule (exports null) and polyfills (empty — browsers have native URL and base64), following the existing pattern used by singleton.web.ts
Error:Uncaught Error: Cannot read properties of undefined (reading 'get') at NativeClerkModule.js
Test plan
  •  Verify @clerk/expo no longer crashes when bundled for web (Expo web / react-native-web)
  •  Verify native (iOS/Android) functionality is unaffected — TurboModuleRegistry.get() still runs on native via the original .ts file
  •  Verify hooks (useSignIn, useSSO, useAuth) work correctly on web
Summary by CodeRabbit
  • Bug Fixes
    • Fixed web crashes in the Expo package by improving native module import handling and providing proper fallback behavior when modules are unavailable on web platforms.
@chriscanin
fix(expo): prevent crash when importing @clerk/expo in web environments
18ccf31
Add .web.ts variants for NativeClerkModule spec and polyfills so the
bundler skips TurboModuleRegistry and react-native-url-polyfill on web.
@vercel
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Mar 13, 2026•

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🦋 Changeset detected
Latest commit: a4f23d2
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@clerk/expoPatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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No actionable comments were generated in the recent review. 🎉
ℹ️ Recent review info
⚙️ Run configuration
Configuration used: Repository YAML (base), Organization UI (inherited)
Review profile: ASSERTIVE
Plan: Pro
Run ID: 8bcbe78d-4d4b-443b-ad66-6d66d6a0400d
📥 Commits
Reviewing files that changed from the base of the PR and between 18ccf31 and 0c88601.
📒 Files selected for processing (1)
  • packages/expo/src/specs/NativeClerkModule.ts
📝 Walkthrough
Walkthrough
A patch is being introduced to address web crashes in the Clerk Expo package. The changes include adding a new changelog entry documenting the fix, creating a new web-specific polyfills file that indicates no polyfills are required in web environments, and modifying the NativeClerkModule to use optional chaining and nullish coalescing when accessing the TurboModuleRegistry, allowing it to return null when the registry is unavailable rather than throwing an error.
🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check nameStatusExplanation
Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title directly and clearly describes the main fix: preventing crashes when importing @clerk/expo in web environments, which is the core objective of the changeset.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
✏️ Tip: You can configure your own custom pre-merge checks in the settings.
📝 Coding Plan
  •  Generate coding plan for human review comments
Warning
Review ran into problems
🔥 Problems
Git: Failed to clone repository. Please run the @coderabbitai full review command to re-trigger a full review. If the issue persists, set path_filters to include or exclude specific files.
Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.
❤️ Share
Comment @coderabbitai help to get the list of available commands and usage tips.
@chriscanin
fix(expo): use optional chaining for TurboModuleRegistry on web
0c88601
Replace .web.ts approach with optional chaining in the original spec
file. This avoids TypeScript build issues from moduleSuffixes while
still preventing the crash when TurboModuleRegistry is undefined on web.
@chriscanin
chriscanin
commented
Mar 13, 2026•

edited

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ContributorAuthor
Screenshot 2026-03-13 at 9 07 32 AMScreenshot 2026-03-13 at 9 10 34 AM
I was able to reproduce Yu's error, and this is a screenshot of before and after from this fix.
@pkg-pr-new
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commented
Mar 13, 2026•

edited

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@clerk/agent-toolkit
npm i https://pkg.pr.new/@clerk/agent-toolkit@8066

@clerk/astro
npm i https://pkg.pr.new/@clerk/astro@8066

@clerk/backend
npm i https://pkg.pr.new/@clerk/backend@8066

@clerk/chrome-extension
npm i https://pkg.pr.new/@clerk/chrome-extension@8066

@clerk/clerk-js
npm i https://pkg.pr.new/@clerk/clerk-js@8066

@clerk/dev-cli
npm i https://pkg.pr.new/@clerk/dev-cli@8066

@clerk/expo
npm i https://pkg.pr.new/@clerk/expo@8066

@clerk/expo-passkeys
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commit: a4f23d2
@chriscanin
chriscanin
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from brkalowMarch 13, 2026 16:17
@chriscaninchriscanin
self-assigned this
Mar 13, 2026
@brkalow
brkalow
merged commit 6b411b1
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@brkalow
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chris/fix-expo-web-crash

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March 16, 2026 17:03
@clerk-cookieclerk-cookie
mentioned this pull request
Mar 16, 2026
 Merged

@chriscaninchriscanin
mentioned this pull request
Mar 18, 2026
 Merged

2 tasks
wobsoriano pushed a commit
that referenced
this pull request
Mar 26, 2026
@chriscanin@wobsoriano
fix(expo): prevent crash when importing @clerk/expo in web environmen…
cd7c23a
…ts (#8066)
@coderabbitaicoderabbitaiBot
mentioned this pull request
Aug 9, 2026
 Merged

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