Skip to content

fix(ui): surface silent failures in component renderer#8379

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
jacekradko merged 5 commits into from
May 2, 2026
Merged

fix(ui): surface silent failures in component renderer #8379

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
11ba8b9
fix(ui): surface silent failures in component renderer
jacekradko Apr 22, 2026
571daf7
Merge branch 'main' into jacek/ui-mount-diagnostic
jacekradko Apr 23, 2026
75249e0
Merge branch 'main' into jacek/ui-mount-diagnostic
jacekradko Apr 23, 2026
ab4c147
Merge branch 'main' into jacek/ui-mount-diagnostic
jacekradko May 1, 2026
1831e6a
Merge branch 'main' into jacek/ui-mount-diagnostic
jacekradko May 2, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 5 additions & 0 deletions .changeset/ui-mount-diagnostic.md
View file
Open in desktop
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@clerk/ui": patch
---

Surface initialization errors and stalled mounts in the component renderer. The internal `ensureMounted` pipeline now logs a `[Clerk UI]` error to the console when the lazy module import rejects, and emits a diagnostic warning if the renderer has not mounted within 10 seconds. Makes silent failures (e.g. failed dev-server chunk loads, unresolved lazy-compilation proxies) surface with an actionable message instead of hanging without feedback.
56 changes: 34 additions & 22 deletions packages/ui/src/Components.tsx
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -236,29 +236,41 @@ export const mountComponentRenderer = (
// .unmountComponent incorrectly called before the component is rendered
if (!componentsControlsResolver) {
const deferredPromise = createDeferredPromise();
componentsControlsResolver = import('./lazyModules/common').then(({ createRoot }) => {
createRoot(clerkRoot).render(
<Components
getClerk={getClerk}
getEnvironment={getEnvironment}
options={options}
onComponentsMounted={() => {
// Defer warning check to avoid blocking component mount
// Only check in development mode (based on publishable key, not NODE_ENV)
if (getClerk().instanceType === 'development') {
const scheduleWarningCheck =
typeof requestIdleCallback === 'function'
? requestIdleCallback
: (cb: () => void) => setTimeout(cb, 0);
scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
}
deferredPromise.resolve();
}}
moduleManager={moduleManager}
/>,
const mountTimeout = setTimeout(() => {
console.error(
'[Clerk UI] Component renderer did not mount within 10s. Common causes: a failed chunk load, a dev-server misconfiguration (e.g. unresolved lazy-compilation proxy), or a ClerkProvider/mountX call before the page is hydrated. Check the Network tab for stalled or empty requests.',
);
return deferredPromise.promise.then(() => componentsControls);
});
}, 10_000);
componentsControlsResolver = import('./lazyModules/common')
.then(({ createRoot }) => {
createRoot(clerkRoot).render(
<Components
getClerk={getClerk}
getEnvironment={getEnvironment}
options={options}
onComponentsMounted={() => {
clearTimeout(mountTimeout);
// Defer warning check to avoid blocking component mount
// Only check in development mode (based on publishable key, not NODE_ENV)
if (getClerk().instanceType === 'development') {
const scheduleWarningCheck =
typeof requestIdleCallback === 'function'
? requestIdleCallback
: (cb: () => void) => setTimeout(cb, 0);
scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
}
deferredPromise.resolve();
}}
moduleManager={moduleManager}
/>,
);
return deferredPromise.promise.then(() => componentsControls);
})
.catch(err => {
clearTimeout(mountTimeout);
console.error('[Clerk UI] Failed to initialize component renderer:', err);
throw err;
});
}
return componentsControlsResolver.then(controls => controls);
},
Expand Down
Loading
, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
fix(ui): surface silent failures in component renderer by jacekradko · Pull Request #8379 · clerk/javascript · GitHub
Skip to content
fix(ui): surface silent failures in component renderer#8379

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

jacekradko
merged 5 commits into

from

May 2, 2026
 Merged


fix(ui): surface silent failures in component renderer
#8379
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


5 commits


Select commit
Hold shift + click to select a range
11ba8b9

fix(ui): surface silent failures in component renderer


jacekradko Apr 22, 2026
571daf7

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
75249e0

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
ab4c147

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 1, 2026
1831e6a

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 2, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


5 changes: 5 additions & 0 deletions
.changeset/ui-mount-diagnostic.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@clerk/ui": patch
---

Surface initialization errors and stalled mounts in the component renderer. The internal `ensureMounted` pipeline now logs a `[Clerk UI]` error to the console when the lazy module import rejects, and emits a diagnostic warning if the renderer has not mounted within 10 seconds. Makes silent failures (e.g. failed dev-server chunk loads, unresolved lazy-compilation proxies) surface with an actionable message instead of hanging without feedback.

56 changes: 34 additions & 22 deletions
packages/ui/src/Components.tsx

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -236,29 +236,41 @@ export const mountComponentRenderer = (
 // .unmountComponent incorrectly called before the component is rendered
 if (!componentsControlsResolver) {
 const deferredPromise = createDeferredPromise();
 componentsControlsResolver = import('./lazyModules/common').then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 const mountTimeout = setTimeout(() => {
 console.error(
 '[Clerk UI] Component renderer did not mount within 10s. Common causes: a failed chunk load, a dev-server misconfiguration (e.g. unresolved lazy-compilation proxy), or a ClerkProvider/mountX call before the page is hydrated. Check the Network tab for stalled or empty requests.',
 );
 return deferredPromise.promise.then(() => componentsControls);
 });
 }, 10_000);
 componentsControlsResolver = import('./lazyModules/common')
 .then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 clearTimeout(mountTimeout);
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 );
 return deferredPromise.promise.then(() => componentsControls);
 })
 .catch(err => {
 clearTimeout(mountTimeout);
 console.error('[Clerk UI] Failed to initialize component renderer:', err);
 throw err;
 });
 }
 return componentsControlsResolver.then(controls => controls);
 },
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
fix(ui): surface silent failures in component renderer by jacekradko · Pull Request #8379 · clerk/javascript · GitHub
Skip to content
fix(ui): surface silent failures in component renderer#8379

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

jacekradko
merged 5 commits into

from

May 2, 2026
 Merged


fix(ui): surface silent failures in component renderer
#8379
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


5 commits


Select commit
Hold shift + click to select a range
11ba8b9

fix(ui): surface silent failures in component renderer


jacekradko Apr 22, 2026
571daf7

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
75249e0

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
ab4c147

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 1, 2026
1831e6a

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 2, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


5 changes: 5 additions & 0 deletions
.changeset/ui-mount-diagnostic.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@clerk/ui": patch
---

Surface initialization errors and stalled mounts in the component renderer. The internal `ensureMounted` pipeline now logs a `[Clerk UI]` error to the console when the lazy module import rejects, and emits a diagnostic warning if the renderer has not mounted within 10 seconds. Makes silent failures (e.g. failed dev-server chunk loads, unresolved lazy-compilation proxies) surface with an actionable message instead of hanging without feedback.

56 changes: 34 additions & 22 deletions
packages/ui/src/Components.tsx

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -236,29 +236,41 @@ export const mountComponentRenderer = (
 // .unmountComponent incorrectly called before the component is rendered
 if (!componentsControlsResolver) {
 const deferredPromise = createDeferredPromise();
 componentsControlsResolver = import('./lazyModules/common').then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 const mountTimeout = setTimeout(() => {
 console.error(
 '[Clerk UI] Component renderer did not mount within 10s. Common causes: a failed chunk load, a dev-server misconfiguration (e.g. unresolved lazy-compilation proxy), or a ClerkProvider/mountX call before the page is hydrated. Check the Network tab for stalled or empty requests.',
 );
 return deferredPromise.promise.then(() => componentsControls);
 });
 }, 10_000);
 componentsControlsResolver = import('./lazyModules/common')
 .then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 clearTimeout(mountTimeout);
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 );
 return deferredPromise.promise.then(() => componentsControls);
 })
 .catch(err => {
 clearTimeout(mountTimeout);
 console.error('[Clerk UI] Failed to initialize component renderer:', err);
 throw err;
 });
 }
 return componentsControlsResolver.then(controls => controls);
 },
Expand Down
Loading

, '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);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
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);
});
});
});
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(ui): surface silent failures in component renderer by jacekradko · Pull Request #8379 · clerk/javascript · GitHub
Skip to content
fix(ui): surface silent failures in component renderer#8379

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

jacekradko
merged 5 commits into

from

May 2, 2026
 Merged


fix(ui): surface silent failures in component renderer
#8379
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


5 commits


Select commit
Hold shift + click to select a range
11ba8b9

fix(ui): surface silent failures in component renderer


jacekradko Apr 22, 2026
571daf7

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
75249e0

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
ab4c147

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 1, 2026
1831e6a

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 2, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


5 changes: 5 additions & 0 deletions
.changeset/ui-mount-diagnostic.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@clerk/ui": patch
---

Surface initialization errors and stalled mounts in the component renderer. The internal `ensureMounted` pipeline now logs a `[Clerk UI]` error to the console when the lazy module import rejects, and emits a diagnostic warning if the renderer has not mounted within 10 seconds. Makes silent failures (e.g. failed dev-server chunk loads, unresolved lazy-compilation proxies) surface with an actionable message instead of hanging without feedback.

56 changes: 34 additions & 22 deletions
packages/ui/src/Components.tsx

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -236,29 +236,41 @@ export const mountComponentRenderer = (
 // .unmountComponent incorrectly called before the component is rendered
 if (!componentsControlsResolver) {
 const deferredPromise = createDeferredPromise();
 componentsControlsResolver = import('./lazyModules/common').then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 const mountTimeout = setTimeout(() => {
 console.error(
 '[Clerk UI] Component renderer did not mount within 10s. Common causes: a failed chunk load, a dev-server misconfiguration (e.g. unresolved lazy-compilation proxy), or a ClerkProvider/mountX call before the page is hydrated. Check the Network tab for stalled or empty requests.',
 );
 return deferredPromise.promise.then(() => componentsControls);
 });
 }, 10_000);
 componentsControlsResolver = import('./lazyModules/common')
 .then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 clearTimeout(mountTimeout);
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 );
 return deferredPromise.promise.then(() => componentsControls);
 })
 .catch(err => {
 clearTimeout(mountTimeout);
 console.error('[Clerk UI] Failed to initialize component renderer:', err);
 throw err;
 });
 }
 return componentsControlsResolver.then(controls => controls);
 },
Expand Down
Loading

, '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(ui): surface silent failures in component renderer by jacekradko · Pull Request #8379 · clerk/javascript · GitHub
Skip to content
fix(ui): surface silent failures in component renderer#8379

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

jacekradko
merged 5 commits into

from

May 2, 2026
 Merged


fix(ui): surface silent failures in component renderer
#8379
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


5 commits


Select commit
Hold shift + click to select a range
11ba8b9

fix(ui): surface silent failures in component renderer


jacekradko Apr 22, 2026
571daf7

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
75249e0

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
ab4c147

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 1, 2026
1831e6a

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 2, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


5 changes: 5 additions & 0 deletions
.changeset/ui-mount-diagnostic.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@clerk/ui": patch
---

Surface initialization errors and stalled mounts in the component renderer. The internal `ensureMounted` pipeline now logs a `[Clerk UI]` error to the console when the lazy module import rejects, and emits a diagnostic warning if the renderer has not mounted within 10 seconds. Makes silent failures (e.g. failed dev-server chunk loads, unresolved lazy-compilation proxies) surface with an actionable message instead of hanging without feedback.

56 changes: 34 additions & 22 deletions
packages/ui/src/Components.tsx

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -236,29 +236,41 @@ export const mountComponentRenderer = (
 // .unmountComponent incorrectly called before the component is rendered
 if (!componentsControlsResolver) {
 const deferredPromise = createDeferredPromise();
 componentsControlsResolver = import('./lazyModules/common').then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 const mountTimeout = setTimeout(() => {
 console.error(
 '[Clerk UI] Component renderer did not mount within 10s. Common causes: a failed chunk load, a dev-server misconfiguration (e.g. unresolved lazy-compilation proxy), or a ClerkProvider/mountX call before the page is hydrated. Check the Network tab for stalled or empty requests.',
 );
 return deferredPromise.promise.then(() => componentsControls);
 });
 }, 10_000);
 componentsControlsResolver = import('./lazyModules/common')
 .then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 clearTimeout(mountTimeout);
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 );
 return deferredPromise.promise.then(() => componentsControls);
 })
 .catch(err => {
 clearTimeout(mountTimeout);
 console.error('[Clerk UI] Failed to initialize component renderer:', err);
 throw err;
 });
 }
 return componentsControlsResolver.then(controls => controls);
 },
Expand Down
Loading

, '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(ui): surface silent failures in component renderer by jacekradko · Pull Request #8379 · clerk/javascript · GitHub
Skip to content
fix(ui): surface silent failures in component renderer#8379

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

jacekradko
merged 5 commits into

from

May 2, 2026
 Merged


fix(ui): surface silent failures in component renderer
#8379
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


5 commits


Select commit
Hold shift + click to select a range
11ba8b9

fix(ui): surface silent failures in component renderer


jacekradko Apr 22, 2026
571daf7

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
75249e0

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
ab4c147

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 1, 2026
1831e6a

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 2, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


5 changes: 5 additions & 0 deletions
.changeset/ui-mount-diagnostic.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@clerk/ui": patch
---

Surface initialization errors and stalled mounts in the component renderer. The internal `ensureMounted` pipeline now logs a `[Clerk UI]` error to the console when the lazy module import rejects, and emits a diagnostic warning if the renderer has not mounted within 10 seconds. Makes silent failures (e.g. failed dev-server chunk loads, unresolved lazy-compilation proxies) surface with an actionable message instead of hanging without feedback.

56 changes: 34 additions & 22 deletions
packages/ui/src/Components.tsx

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -236,29 +236,41 @@ export const mountComponentRenderer = (
 // .unmountComponent incorrectly called before the component is rendered
 if (!componentsControlsResolver) {
 const deferredPromise = createDeferredPromise();
 componentsControlsResolver = import('./lazyModules/common').then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 const mountTimeout = setTimeout(() => {
 console.error(
 '[Clerk UI] Component renderer did not mount within 10s. Common causes: a failed chunk load, a dev-server misconfiguration (e.g. unresolved lazy-compilation proxy), or a ClerkProvider/mountX call before the page is hydrated. Check the Network tab for stalled or empty requests.',
 );
 return deferredPromise.promise.then(() => componentsControls);
 });
 }, 10_000);
 componentsControlsResolver = import('./lazyModules/common')
 .then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 clearTimeout(mountTimeout);
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 );
 return deferredPromise.promise.then(() => componentsControls);
 })
 .catch(err => {
 clearTimeout(mountTimeout);
 console.error('[Clerk UI] Failed to initialize component renderer:', err);
 throw err;
 });
 }
 return componentsControlsResolver.then(controls => controls);
 },
Expand Down
Loading

, '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(ui): surface silent failures in component renderer by jacekradko · Pull Request #8379 · clerk/javascript · GitHub
Skip to content
fix(ui): surface silent failures in component renderer#8379

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

jacekradko
merged 5 commits into

from

May 2, 2026
 Merged


fix(ui): surface silent failures in component renderer
#8379
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


5 commits


Select commit
Hold shift + click to select a range
11ba8b9

fix(ui): surface silent failures in component renderer


jacekradko Apr 22, 2026
571daf7

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
75249e0

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
ab4c147

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 1, 2026
1831e6a

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 2, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


5 changes: 5 additions & 0 deletions
.changeset/ui-mount-diagnostic.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@clerk/ui": patch
---

Surface initialization errors and stalled mounts in the component renderer. The internal `ensureMounted` pipeline now logs a `[Clerk UI]` error to the console when the lazy module import rejects, and emits a diagnostic warning if the renderer has not mounted within 10 seconds. Makes silent failures (e.g. failed dev-server chunk loads, unresolved lazy-compilation proxies) surface with an actionable message instead of hanging without feedback.

56 changes: 34 additions & 22 deletions
packages/ui/src/Components.tsx

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -236,29 +236,41 @@ export const mountComponentRenderer = (
 // .unmountComponent incorrectly called before the component is rendered
 if (!componentsControlsResolver) {
 const deferredPromise = createDeferredPromise();
 componentsControlsResolver = import('./lazyModules/common').then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 const mountTimeout = setTimeout(() => {
 console.error(
 '[Clerk UI] Component renderer did not mount within 10s. Common causes: a failed chunk load, a dev-server misconfiguration (e.g. unresolved lazy-compilation proxy), or a ClerkProvider/mountX call before the page is hydrated. Check the Network tab for stalled or empty requests.',
 );
 return deferredPromise.promise.then(() => componentsControls);
 });
 }, 10_000);
 componentsControlsResolver = import('./lazyModules/common')
 .then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 clearTimeout(mountTimeout);
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 );
 return deferredPromise.promise.then(() => componentsControls);
 })
 .catch(err => {
 clearTimeout(mountTimeout);
 console.error('[Clerk UI] Failed to initialize component renderer:', err);
 throw err;
 });
 }
 return componentsControlsResolver.then(controls => controls);
 },
Expand Down
Loading

, '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(ui): surface silent failures in component renderer by jacekradko · Pull Request #8379 · clerk/javascript · GitHub
Skip to content
fix(ui): surface silent failures in component renderer#8379

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

jacekradko
merged 5 commits into

from

May 2, 2026
 Merged


fix(ui): surface silent failures in component renderer
#8379
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


5 commits


Select commit
Hold shift + click to select a range
11ba8b9

fix(ui): surface silent failures in component renderer


jacekradko Apr 22, 2026
571daf7

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
75249e0

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko Apr 23, 2026
ab4c147

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 1, 2026
1831e6a

Merge branch 'main' into jacek/ui-mount-diagnostic


jacekradko May 2, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


5 changes: 5 additions & 0 deletions
.changeset/ui-mount-diagnostic.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@clerk/ui": patch
---

Surface initialization errors and stalled mounts in the component renderer. The internal `ensureMounted` pipeline now logs a `[Clerk UI]` error to the console when the lazy module import rejects, and emits a diagnostic warning if the renderer has not mounted within 10 seconds. Makes silent failures (e.g. failed dev-server chunk loads, unresolved lazy-compilation proxies) surface with an actionable message instead of hanging without feedback.

56 changes: 34 additions & 22 deletions
packages/ui/src/Components.tsx

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -236,29 +236,41 @@ export const mountComponentRenderer = (
 // .unmountComponent incorrectly called before the component is rendered
 if (!componentsControlsResolver) {
 const deferredPromise = createDeferredPromise();
 componentsControlsResolver = import('./lazyModules/common').then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 const mountTimeout = setTimeout(() => {
 console.error(
 '[Clerk UI] Component renderer did not mount within 10s. Common causes: a failed chunk load, a dev-server misconfiguration (e.g. unresolved lazy-compilation proxy), or a ClerkProvider/mountX call before the page is hydrated. Check the Network tab for stalled or empty requests.',
 );
 return deferredPromise.promise.then(() => componentsControls);
 });
 }, 10_000);
 componentsControlsResolver = import('./lazyModules/common')
 .then(({ createRoot }) => {
 createRoot(clerkRoot).render(
 <Components
 getClerk={getClerk}
 getEnvironment={getEnvironment}
 options={options}
 onComponentsMounted={() => {
 clearTimeout(mountTimeout);
 // Defer warning check to avoid blocking component mount
 // Only check in development mode (based on publishable key, not NODE_ENV)
 if (getClerk().instanceType === 'development') {
 const scheduleWarningCheck =
 typeof requestIdleCallback === 'function'
 ? requestIdleCallback
 : (cb: () => void) => setTimeout(cb, 0);
 scheduleWarningCheck(() => warnAboutCustomizationWithoutPinning(options));
 }
 deferredPromise.resolve();
 }}
 moduleManager={moduleManager}
 />,
 );
 return deferredPromise.promise.then(() => componentsControls);
 })
 .catch(err => {
 clearTimeout(mountTimeout);
 console.error('[Clerk UI] Failed to initialize component renderer:', err);
 throw err;
 });
 }
 return componentsControlsResolver.then(controls => controls);
 },
Expand Down
Loading