fix(astro): Preserve Clerk component stylings across view transitions#8661

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wobsoriano merged 2 commits into from
May 27, 2026
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fix(astro): Preserve Clerk component stylings across view transitions #8661

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fix(astro): Preserve clerk component styling across view transitions
wobsoriano May 27, 2026
ceffc1e
chore: update changeset
wobsoriano May 27, 2026
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5 changes: 5 additions & 0 deletions .changeset/astro-view-transition-styling-fix.md
View file
Open in desktop
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
'@clerk/astro': patch
---

Fix Clerk component styling being lost after Astro View Transitions navigations.
1 change: 1 addition & 0 deletions integration/templates/astro-node/src/pages/transitions/index.astro
View file
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Original file line numberDiff line numberDiff line change
Expand Up@@ -10,6 +10,7 @@ import Layout from '../../layouts/ViewTransitionsLayout.astro';
</Show>
<Show when='signed-in'>
<UserButton />
<a href='/transitions/page2'>Page 2</a>
</Show>
</div>
</Layout>
11 changes: 11 additions & 0 deletions integration/templates/astro-node/src/pages/transitions/page2.astro
View file
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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,11 @@
---
import { UserButton } from '@clerk/astro/components';
import Layout from '../../layouts/ViewTransitionsLayout.astro';
---

<Layout title='Transitions page 2'>
<div class='w-full flex justify-center'>
<a href='/transitions'>Back</a>
<UserButton />
</div>
</Layout>
36 changes: 36 additions & 0 deletions integration/tests/astro/components.test.ts
View file
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Original file line numberDiff line numberDiff line change
Expand Up@@ -484,6 +484,42 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
await u.po.userButton.waitForMounted();
});

test('preserves clerk component styling after view transitions navigations', async ({ page, context }) => {
const u = createTestUtils({ app, page, context });

// Sign in directly (full navigation, not view transition)
await u.page.goToRelative('/sign-in');
await u.po.signIn.waitForMounted();
await u.po.signIn.signInWithEmailAndInstantPassword({ email: fakeAdmin.email, password: fakeAdmin.password });
await u.po.expect.toBeSignedIn();

// Go to the view-transitions-enabled page
await u.page.goToRelative('/transitions');
await u.po.userButton.waitForMounted();

// Navigate to a second transitions page via link click (triggers view transition)
await u.page.getByRole('link', { name: /Page 2/i }).click();
await u.page.waitForURL(`${app.serverUrl}/transitions/page2`);
await u.po.userButton.waitForMounted();

// Navigate back via link click (triggers another view transition)
await u.page.getByRole('link', { name: /Back/i }).click();
await u.page.waitForURL(`${app.serverUrl}/transitions`);
await u.po.userButton.waitForMounted();

// Verify Emotion style elements are present in document.head after the round-trip.
// Regression: cloneNode() on #clerk-components detached the React root from its host
// element, causing Clerk to lose its style injection context on subsequent navigations.
const emotionStyleCount = await page.evaluate(() => document.head.querySelectorAll('style[data-emotion]').length);
expect(emotionStyleCount).toBeGreaterThan(0);

// Verify #clerk-components is attached to the live document (not detached from the React root).
const clerkRootIsAttached = await page.evaluate(() =>
document.body.contains(document.getElementById('clerk-components')),
);
expect(clerkRootIsAttached).toBe(true);
});

test('server islands Show component shows correct states', async ({ page, context }) => {
const u = createTestUtils({ app, page, context });

Expand Down
34 changes: 23 additions & 11 deletions packages/astro/src/integration/snippets.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -71,29 +71,41 @@ export function buildPageLoadSnippet({
}

if (transitionEnabledOnThisPage()) {
// We must do the dynamic imports within the event listeners because otherwise we may race and miss initial astro:page-load
document.addEventListener('astro:before-swap', async (e) => {
const { swapFunctions } = await import('astro:transitions/client');
// Start loading eagerly without awaiting so both listeners share one module load.
// Listeners are registered synchronously here, which avoids the race where awaiting
// before addEventListener would cause us to miss the initial astro:page-load event.
const transitionClient = import('astro:transitions/client');

const clerkComponents = document.querySelector('#clerk-components');
// Keep the div element added by Clerk
if (clerkComponents) {
const clonedEl = clerkComponents.cloneNode(true);
e.newDocument.body.appendChild(clonedEl);
document.addEventListener('astro:before-swap', async (e) => {
const nextDocument = e.newDocument;
const nextHead = nextDocument?.head;
if (!nextDocument || !nextHead) {
return;
}

e.swap = () => swapDocument(swapFunctions, e.newDocument);
const { swapFunctions } = await transitionClient;

e.swap = () => {
const clerkComponents = document.querySelector('#clerk-components');
// Move (not clone) the element so Clerk's React root stays bound to its host node
// across the body swap. Cloning produces a detached copy with no React associated,
// which breaks style injection on subsequent navigations.
if (clerkComponents) {
nextDocument.body.appendChild(clerkComponents);
}
swapDocument(swapFunctions, nextDocument);
};
});

document.addEventListener('astro:page-load', async (e) => {
const { navigate } = await import('astro:transitions/client');
const { navigate } = await transitionClient;

await runInjectionScript({
...${JSON.stringify(internalParams)},
routerPush: navigate,
routerReplace: (url) => navigate(url, { history: 'replace' }),
});
})
});
} else {
await runInjectionScript(${JSON.stringify(internalParams)});
}`;
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" + '

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fix(astro): Preserve Clerk component stylings across view transitions#8661

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 Merged

wobsoriano
merged 2 commits into

from

May 27, 2026
 Merged


fix(astro): Preserve Clerk component stylings across view transitions
#8661
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5d1fa3c

fix(astro): Preserve clerk component styling across view transitions


wobsoriano May 27, 2026
ceffc1e

chore: update changeset


wobsoriano May 27, 2026

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5 changes: 5 additions & 0 deletions
.changeset/astro-view-transition-styling-fix.md

View file


Open in desktop

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

Fix Clerk component styling being lost after Astro View Transitions navigations.

1 change: 1 addition & 0 deletions
integration/templates/astro-node/src/pages/transitions/index.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -10,6 +10,7 @@ import Layout from '../../layouts/ViewTransitionsLayout.astro';
 </Show>
 <Show when='signed-in'>
 <UserButton />
 <a href='/transitions/page2'>Page 2</a>
 </Show>
 </div>
</Layout>

11 changes: 11 additions & 0 deletions
integration/templates/astro-node/src/pages/transitions/page2.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,11 @@
---
import { UserButton } from '@clerk/astro/components';
import Layout from '../../layouts/ViewTransitionsLayout.astro';
---

<Layout title='Transitions page 2'>
 <div class='w-full flex justify-center'>
 <a href='/transitions'>Back</a>
 <UserButton />
 </div>
</Layout>

36 changes: 36 additions & 0 deletions
integration/tests/astro/components.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -484,6 +484,42 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 await u.po.userButton.waitForMounted();
 });

 test('preserves clerk component styling after view transitions navigations', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Sign in directly (full navigation, not view transition)
 await u.page.goToRelative('/sign-in');
 await u.po.signIn.waitForMounted();
 await u.po.signIn.signInWithEmailAndInstantPassword({ email: fakeAdmin.email, password: fakeAdmin.password });
 await u.po.expect.toBeSignedIn();

 // Go to the view-transitions-enabled page
 await u.page.goToRelative('/transitions');
 await u.po.userButton.waitForMounted();

 // Navigate to a second transitions page via link click (triggers view transition)
 await u.page.getByRole('link', { name: /Page 2/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions/page2`);
 await u.po.userButton.waitForMounted();

 // Navigate back via link click (triggers another view transition)
 await u.page.getByRole('link', { name: /Back/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions`);
 await u.po.userButton.waitForMounted();

 // Verify Emotion style elements are present in document.head after the round-trip.
 // Regression: cloneNode() on #clerk-components detached the React root from its host
 // element, causing Clerk to lose its style injection context on subsequent navigations.
 const emotionStyleCount = await page.evaluate(() => document.head.querySelectorAll('style[data-emotion]').length);
 expect(emotionStyleCount).toBeGreaterThan(0);

 // Verify #clerk-components is attached to the live document (not detached from the React root).
 const clerkRootIsAttached = await page.evaluate(() =>
 document.body.contains(document.getElementById('clerk-components')),
 );
 expect(clerkRootIsAttached).toBe(true);
 });

 test('server islands Show component shows correct states', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

Expand Down

34 changes: 23 additions & 11 deletions
packages/astro/src/integration/snippets.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,29 +71,41 @@ export function buildPageLoadSnippet({
 }

 if (transitionEnabledOnThisPage()) {
 // We must do the dynamic imports within the event listeners because otherwise we may race and miss initial astro:page-load
 document.addEventListener('astro:before-swap', async (e) => {
 const { swapFunctions } = await import('astro:transitions/client');
 // Start loading eagerly without awaiting so both listeners share one module load.
 // Listeners are registered synchronously here, which avoids the race where awaiting
 // before addEventListener would cause us to miss the initial astro:page-load event.
 const transitionClient = import('astro:transitions/client');

 const clerkComponents = document.querySelector('#clerk-components');
// Keep the div element added by Clerk
if (clerkComponents) {
 const clonedEl = clerkComponents.cloneNode(true);
e.newDocument.body.appendChild(clonedEl);
 document.addEventListener('astro:before-swap', async (e) => {
const nextDocument = e.newDocument;
const nextHead = nextDocument?.head;
if (!nextDocument || !nextHead) {
return;
 }

 e.swap = () => swapDocument(swapFunctions, e.newDocument);
 const { swapFunctions } = await transitionClient;

 e.swap = () => {
 const clerkComponents = document.querySelector('#clerk-components');
 // Move (not clone) the element so Clerk's React root stays bound to its host node
 // across the body swap. Cloning produces a detached copy with no React associated,
 // which breaks style injection on subsequent navigations.
 if (clerkComponents) {
 nextDocument.body.appendChild(clerkComponents);
 }
 swapDocument(swapFunctions, nextDocument);
 };
 });

 document.addEventListener('astro:page-load', async (e) => {
 const { navigate } = await import('astro:transitions/client');
 const { navigate } = await transitionClient;

 await runInjectionScript({
 ...${JSON.stringify(internalParams)},
 routerPush: navigate,
 routerReplace: (url) => navigate(url, { history: 'replace' }),
 });
 })
 });
 } else {
 await runInjectionScript(${JSON.stringify(internalParams)});
 }`;
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('^' + ".*" + '

Skip to content
fix(astro): Preserve Clerk component stylings across view transitions#8661

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 Merged

wobsoriano
merged 2 commits into

from

May 27, 2026
 Merged


fix(astro): Preserve Clerk component stylings across view transitions
#8661
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5d1fa3c

fix(astro): Preserve clerk component styling across view transitions


wobsoriano May 27, 2026
ceffc1e

chore: update changeset


wobsoriano May 27, 2026

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5 changes: 5 additions & 0 deletions
.changeset/astro-view-transition-styling-fix.md

View file


Open in desktop

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

Fix Clerk component styling being lost after Astro View Transitions navigations.

1 change: 1 addition & 0 deletions
integration/templates/astro-node/src/pages/transitions/index.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -10,6 +10,7 @@ import Layout from '../../layouts/ViewTransitionsLayout.astro';
 </Show>
 <Show when='signed-in'>
 <UserButton />
 <a href='/transitions/page2'>Page 2</a>
 </Show>
 </div>
</Layout>

11 changes: 11 additions & 0 deletions
integration/templates/astro-node/src/pages/transitions/page2.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,11 @@
---
import { UserButton } from '@clerk/astro/components';
import Layout from '../../layouts/ViewTransitionsLayout.astro';
---

<Layout title='Transitions page 2'>
 <div class='w-full flex justify-center'>
 <a href='/transitions'>Back</a>
 <UserButton />
 </div>
</Layout>

36 changes: 36 additions & 0 deletions
integration/tests/astro/components.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -484,6 +484,42 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 await u.po.userButton.waitForMounted();
 });

 test('preserves clerk component styling after view transitions navigations', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Sign in directly (full navigation, not view transition)
 await u.page.goToRelative('/sign-in');
 await u.po.signIn.waitForMounted();
 await u.po.signIn.signInWithEmailAndInstantPassword({ email: fakeAdmin.email, password: fakeAdmin.password });
 await u.po.expect.toBeSignedIn();

 // Go to the view-transitions-enabled page
 await u.page.goToRelative('/transitions');
 await u.po.userButton.waitForMounted();

 // Navigate to a second transitions page via link click (triggers view transition)
 await u.page.getByRole('link', { name: /Page 2/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions/page2`);
 await u.po.userButton.waitForMounted();

 // Navigate back via link click (triggers another view transition)
 await u.page.getByRole('link', { name: /Back/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions`);
 await u.po.userButton.waitForMounted();

 // Verify Emotion style elements are present in document.head after the round-trip.
 // Regression: cloneNode() on #clerk-components detached the React root from its host
 // element, causing Clerk to lose its style injection context on subsequent navigations.
 const emotionStyleCount = await page.evaluate(() => document.head.querySelectorAll('style[data-emotion]').length);
 expect(emotionStyleCount).toBeGreaterThan(0);

 // Verify #clerk-components is attached to the live document (not detached from the React root).
 const clerkRootIsAttached = await page.evaluate(() =>
 document.body.contains(document.getElementById('clerk-components')),
 );
 expect(clerkRootIsAttached).toBe(true);
 });

 test('server islands Show component shows correct states', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

Expand Down

34 changes: 23 additions & 11 deletions
packages/astro/src/integration/snippets.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,29 +71,41 @@ export function buildPageLoadSnippet({
 }

 if (transitionEnabledOnThisPage()) {
 // We must do the dynamic imports within the event listeners because otherwise we may race and miss initial astro:page-load
 document.addEventListener('astro:before-swap', async (e) => {
 const { swapFunctions } = await import('astro:transitions/client');
 // Start loading eagerly without awaiting so both listeners share one module load.
 // Listeners are registered synchronously here, which avoids the race where awaiting
 // before addEventListener would cause us to miss the initial astro:page-load event.
 const transitionClient = import('astro:transitions/client');

 const clerkComponents = document.querySelector('#clerk-components');
// Keep the div element added by Clerk
if (clerkComponents) {
 const clonedEl = clerkComponents.cloneNode(true);
e.newDocument.body.appendChild(clonedEl);
 document.addEventListener('astro:before-swap', async (e) => {
const nextDocument = e.newDocument;
const nextHead = nextDocument?.head;
if (!nextDocument || !nextHead) {
return;
 }

 e.swap = () => swapDocument(swapFunctions, e.newDocument);
 const { swapFunctions } = await transitionClient;

 e.swap = () => {
 const clerkComponents = document.querySelector('#clerk-components');
 // Move (not clone) the element so Clerk's React root stays bound to its host node
 // across the body swap. Cloning produces a detached copy with no React associated,
 // which breaks style injection on subsequent navigations.
 if (clerkComponents) {
 nextDocument.body.appendChild(clerkComponents);
 }
 swapDocument(swapFunctions, nextDocument);
 };
 });

 document.addEventListener('astro:page-load', async (e) => {
 const { navigate } = await import('astro:transitions/client');
 const { navigate } = await transitionClient;

 await runInjectionScript({
 ...${JSON.stringify(internalParams)},
 routerPush: navigate,
 routerReplace: (url) => navigate(url, { history: 'replace' }),
 });
 })
 });
 } else {
 await runInjectionScript(${JSON.stringify(internalParams)});
 }`;
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('^' + ".*" + '

Skip to content
fix(astro): Preserve Clerk component stylings across view transitions#8661

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 Merged

wobsoriano
merged 2 commits into

from

May 27, 2026
 Merged


fix(astro): Preserve Clerk component stylings across view transitions
#8661
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5d1fa3c

fix(astro): Preserve clerk component styling across view transitions


wobsoriano May 27, 2026
ceffc1e

chore: update changeset


wobsoriano May 27, 2026

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5 changes: 5 additions & 0 deletions
.changeset/astro-view-transition-styling-fix.md

View file


Open in desktop

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

Fix Clerk component styling being lost after Astro View Transitions navigations.

1 change: 1 addition & 0 deletions
integration/templates/astro-node/src/pages/transitions/index.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -10,6 +10,7 @@ import Layout from '../../layouts/ViewTransitionsLayout.astro';
 </Show>
 <Show when='signed-in'>
 <UserButton />
 <a href='/transitions/page2'>Page 2</a>
 </Show>
 </div>
</Layout>

11 changes: 11 additions & 0 deletions
integration/templates/astro-node/src/pages/transitions/page2.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,11 @@
---
import { UserButton } from '@clerk/astro/components';
import Layout from '../../layouts/ViewTransitionsLayout.astro';
---

<Layout title='Transitions page 2'>
 <div class='w-full flex justify-center'>
 <a href='/transitions'>Back</a>
 <UserButton />
 </div>
</Layout>

36 changes: 36 additions & 0 deletions
integration/tests/astro/components.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -484,6 +484,42 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 await u.po.userButton.waitForMounted();
 });

 test('preserves clerk component styling after view transitions navigations', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Sign in directly (full navigation, not view transition)
 await u.page.goToRelative('/sign-in');
 await u.po.signIn.waitForMounted();
 await u.po.signIn.signInWithEmailAndInstantPassword({ email: fakeAdmin.email, password: fakeAdmin.password });
 await u.po.expect.toBeSignedIn();

 // Go to the view-transitions-enabled page
 await u.page.goToRelative('/transitions');
 await u.po.userButton.waitForMounted();

 // Navigate to a second transitions page via link click (triggers view transition)
 await u.page.getByRole('link', { name: /Page 2/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions/page2`);
 await u.po.userButton.waitForMounted();

 // Navigate back via link click (triggers another view transition)
 await u.page.getByRole('link', { name: /Back/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions`);
 await u.po.userButton.waitForMounted();

 // Verify Emotion style elements are present in document.head after the round-trip.
 // Regression: cloneNode() on #clerk-components detached the React root from its host
 // element, causing Clerk to lose its style injection context on subsequent navigations.
 const emotionStyleCount = await page.evaluate(() => document.head.querySelectorAll('style[data-emotion]').length);
 expect(emotionStyleCount).toBeGreaterThan(0);

 // Verify #clerk-components is attached to the live document (not detached from the React root).
 const clerkRootIsAttached = await page.evaluate(() =>
 document.body.contains(document.getElementById('clerk-components')),
 );
 expect(clerkRootIsAttached).toBe(true);
 });

 test('server islands Show component shows correct states', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

Expand Down

34 changes: 23 additions & 11 deletions
packages/astro/src/integration/snippets.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,29 +71,41 @@ export function buildPageLoadSnippet({
 }

 if (transitionEnabledOnThisPage()) {
 // We must do the dynamic imports within the event listeners because otherwise we may race and miss initial astro:page-load
 document.addEventListener('astro:before-swap', async (e) => {
 const { swapFunctions } = await import('astro:transitions/client');
 // Start loading eagerly without awaiting so both listeners share one module load.
 // Listeners are registered synchronously here, which avoids the race where awaiting
 // before addEventListener would cause us to miss the initial astro:page-load event.
 const transitionClient = import('astro:transitions/client');

 const clerkComponents = document.querySelector('#clerk-components');
// Keep the div element added by Clerk
if (clerkComponents) {
 const clonedEl = clerkComponents.cloneNode(true);
e.newDocument.body.appendChild(clonedEl);
 document.addEventListener('astro:before-swap', async (e) => {
const nextDocument = e.newDocument;
const nextHead = nextDocument?.head;
if (!nextDocument || !nextHead) {
return;
 }

 e.swap = () => swapDocument(swapFunctions, e.newDocument);
 const { swapFunctions } = await transitionClient;

 e.swap = () => {
 const clerkComponents = document.querySelector('#clerk-components');
 // Move (not clone) the element so Clerk's React root stays bound to its host node
 // across the body swap. Cloning produces a detached copy with no React associated,
 // which breaks style injection on subsequent navigations.
 if (clerkComponents) {
 nextDocument.body.appendChild(clerkComponents);
 }
 swapDocument(swapFunctions, nextDocument);
 };
 });

 document.addEventListener('astro:page-load', async (e) => {
 const { navigate } = await import('astro:transitions/client');
 const { navigate } = await transitionClient;

 await runInjectionScript({
 ...${JSON.stringify(internalParams)},
 routerPush: navigate,
 routerReplace: (url) => navigate(url, { history: 'replace' }),
 });
 })
 });
 } else {
 await runInjectionScript(${JSON.stringify(internalParams)});
 }`;
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" + '

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fix(astro): Preserve Clerk component stylings across view transitions#8661

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 Merged

wobsoriano
merged 2 commits into

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May 27, 2026
 Merged


fix(astro): Preserve Clerk component stylings across view transitions
#8661
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5d1fa3c

fix(astro): Preserve clerk component styling across view transitions


wobsoriano May 27, 2026
ceffc1e

chore: update changeset


wobsoriano May 27, 2026

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5 changes: 5 additions & 0 deletions
.changeset/astro-view-transition-styling-fix.md

View file


Open in desktop

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

Fix Clerk component styling being lost after Astro View Transitions navigations.

1 change: 1 addition & 0 deletions
integration/templates/astro-node/src/pages/transitions/index.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -10,6 +10,7 @@ import Layout from '../../layouts/ViewTransitionsLayout.astro';
 </Show>
 <Show when='signed-in'>
 <UserButton />
 <a href='/transitions/page2'>Page 2</a>
 </Show>
 </div>
</Layout>

11 changes: 11 additions & 0 deletions
integration/templates/astro-node/src/pages/transitions/page2.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,11 @@
---
import { UserButton } from '@clerk/astro/components';
import Layout from '../../layouts/ViewTransitionsLayout.astro';
---

<Layout title='Transitions page 2'>
 <div class='w-full flex justify-center'>
 <a href='/transitions'>Back</a>
 <UserButton />
 </div>
</Layout>

36 changes: 36 additions & 0 deletions
integration/tests/astro/components.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -484,6 +484,42 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 await u.po.userButton.waitForMounted();
 });

 test('preserves clerk component styling after view transitions navigations', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Sign in directly (full navigation, not view transition)
 await u.page.goToRelative('/sign-in');
 await u.po.signIn.waitForMounted();
 await u.po.signIn.signInWithEmailAndInstantPassword({ email: fakeAdmin.email, password: fakeAdmin.password });
 await u.po.expect.toBeSignedIn();

 // Go to the view-transitions-enabled page
 await u.page.goToRelative('/transitions');
 await u.po.userButton.waitForMounted();

 // Navigate to a second transitions page via link click (triggers view transition)
 await u.page.getByRole('link', { name: /Page 2/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions/page2`);
 await u.po.userButton.waitForMounted();

 // Navigate back via link click (triggers another view transition)
 await u.page.getByRole('link', { name: /Back/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions`);
 await u.po.userButton.waitForMounted();

 // Verify Emotion style elements are present in document.head after the round-trip.
 // Regression: cloneNode() on #clerk-components detached the React root from its host
 // element, causing Clerk to lose its style injection context on subsequent navigations.
 const emotionStyleCount = await page.evaluate(() => document.head.querySelectorAll('style[data-emotion]').length);
 expect(emotionStyleCount).toBeGreaterThan(0);

 // Verify #clerk-components is attached to the live document (not detached from the React root).
 const clerkRootIsAttached = await page.evaluate(() =>
 document.body.contains(document.getElementById('clerk-components')),
 );
 expect(clerkRootIsAttached).toBe(true);
 });

 test('server islands Show component shows correct states', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

Expand Down

34 changes: 23 additions & 11 deletions
packages/astro/src/integration/snippets.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,29 +71,41 @@ export function buildPageLoadSnippet({
 }

 if (transitionEnabledOnThisPage()) {
 // We must do the dynamic imports within the event listeners because otherwise we may race and miss initial astro:page-load
 document.addEventListener('astro:before-swap', async (e) => {
 const { swapFunctions } = await import('astro:transitions/client');
 // Start loading eagerly without awaiting so both listeners share one module load.
 // Listeners are registered synchronously here, which avoids the race where awaiting
 // before addEventListener would cause us to miss the initial astro:page-load event.
 const transitionClient = import('astro:transitions/client');

 const clerkComponents = document.querySelector('#clerk-components');
// Keep the div element added by Clerk
if (clerkComponents) {
 const clonedEl = clerkComponents.cloneNode(true);
e.newDocument.body.appendChild(clonedEl);
 document.addEventListener('astro:before-swap', async (e) => {
const nextDocument = e.newDocument;
const nextHead = nextDocument?.head;
if (!nextDocument || !nextHead) {
return;
 }

 e.swap = () => swapDocument(swapFunctions, e.newDocument);
 const { swapFunctions } = await transitionClient;

 e.swap = () => {
 const clerkComponents = document.querySelector('#clerk-components');
 // Move (not clone) the element so Clerk's React root stays bound to its host node
 // across the body swap. Cloning produces a detached copy with no React associated,
 // which breaks style injection on subsequent navigations.
 if (clerkComponents) {
 nextDocument.body.appendChild(clerkComponents);
 }
 swapDocument(swapFunctions, nextDocument);
 };
 });

 document.addEventListener('astro:page-load', async (e) => {
 const { navigate } = await import('astro:transitions/client');
 const { navigate } = await transitionClient;

 await runInjectionScript({
 ...${JSON.stringify(internalParams)},
 routerPush: navigate,
 routerReplace: (url) => navigate(url, { history: 'replace' }),
 });
 })
 });
 } else {
 await runInjectionScript(${JSON.stringify(internalParams)});
 }`;
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('^' + ".*" + '

Skip to content
fix(astro): Preserve Clerk component stylings across view transitions#8661

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to your account

 Merged

wobsoriano
merged 2 commits into

from

May 27, 2026
 Merged


fix(astro): Preserve Clerk component stylings across view transitions
#8661
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5d1fa3c

fix(astro): Preserve clerk component styling across view transitions


wobsoriano May 27, 2026
ceffc1e

chore: update changeset


wobsoriano May 27, 2026

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5 changes: 5 additions & 0 deletions
.changeset/astro-view-transition-styling-fix.md

View file


Open in desktop

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

Fix Clerk component styling being lost after Astro View Transitions navigations.

1 change: 1 addition & 0 deletions
integration/templates/astro-node/src/pages/transitions/index.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -10,6 +10,7 @@ import Layout from '../../layouts/ViewTransitionsLayout.astro';
 </Show>
 <Show when='signed-in'>
 <UserButton />
 <a href='/transitions/page2'>Page 2</a>
 </Show>
 </div>
</Layout>

11 changes: 11 additions & 0 deletions
integration/templates/astro-node/src/pages/transitions/page2.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,11 @@
---
import { UserButton } from '@clerk/astro/components';
import Layout from '../../layouts/ViewTransitionsLayout.astro';
---

<Layout title='Transitions page 2'>
 <div class='w-full flex justify-center'>
 <a href='/transitions'>Back</a>
 <UserButton />
 </div>
</Layout>

36 changes: 36 additions & 0 deletions
integration/tests/astro/components.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -484,6 +484,42 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 await u.po.userButton.waitForMounted();
 });

 test('preserves clerk component styling after view transitions navigations', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Sign in directly (full navigation, not view transition)
 await u.page.goToRelative('/sign-in');
 await u.po.signIn.waitForMounted();
 await u.po.signIn.signInWithEmailAndInstantPassword({ email: fakeAdmin.email, password: fakeAdmin.password });
 await u.po.expect.toBeSignedIn();

 // Go to the view-transitions-enabled page
 await u.page.goToRelative('/transitions');
 await u.po.userButton.waitForMounted();

 // Navigate to a second transitions page via link click (triggers view transition)
 await u.page.getByRole('link', { name: /Page 2/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions/page2`);
 await u.po.userButton.waitForMounted();

 // Navigate back via link click (triggers another view transition)
 await u.page.getByRole('link', { name: /Back/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions`);
 await u.po.userButton.waitForMounted();

 // Verify Emotion style elements are present in document.head after the round-trip.
 // Regression: cloneNode() on #clerk-components detached the React root from its host
 // element, causing Clerk to lose its style injection context on subsequent navigations.
 const emotionStyleCount = await page.evaluate(() => document.head.querySelectorAll('style[data-emotion]').length);
 expect(emotionStyleCount).toBeGreaterThan(0);

 // Verify #clerk-components is attached to the live document (not detached from the React root).
 const clerkRootIsAttached = await page.evaluate(() =>
 document.body.contains(document.getElementById('clerk-components')),
 );
 expect(clerkRootIsAttached).toBe(true);
 });

 test('server islands Show component shows correct states', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

Expand Down

34 changes: 23 additions & 11 deletions
packages/astro/src/integration/snippets.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,29 +71,41 @@ export function buildPageLoadSnippet({
 }

 if (transitionEnabledOnThisPage()) {
 // We must do the dynamic imports within the event listeners because otherwise we may race and miss initial astro:page-load
 document.addEventListener('astro:before-swap', async (e) => {
 const { swapFunctions } = await import('astro:transitions/client');
 // Start loading eagerly without awaiting so both listeners share one module load.
 // Listeners are registered synchronously here, which avoids the race where awaiting
 // before addEventListener would cause us to miss the initial astro:page-load event.
 const transitionClient = import('astro:transitions/client');

 const clerkComponents = document.querySelector('#clerk-components');
// Keep the div element added by Clerk
if (clerkComponents) {
 const clonedEl = clerkComponents.cloneNode(true);
e.newDocument.body.appendChild(clonedEl);
 document.addEventListener('astro:before-swap', async (e) => {
const nextDocument = e.newDocument;
const nextHead = nextDocument?.head;
if (!nextDocument || !nextHead) {
return;
 }

 e.swap = () => swapDocument(swapFunctions, e.newDocument);
 const { swapFunctions } = await transitionClient;

 e.swap = () => {
 const clerkComponents = document.querySelector('#clerk-components');
 // Move (not clone) the element so Clerk's React root stays bound to its host node
 // across the body swap. Cloning produces a detached copy with no React associated,
 // which breaks style injection on subsequent navigations.
 if (clerkComponents) {
 nextDocument.body.appendChild(clerkComponents);
 }
 swapDocument(swapFunctions, nextDocument);
 };
 });

 document.addEventListener('astro:page-load', async (e) => {
 const { navigate } = await import('astro:transitions/client');
 const { navigate } = await transitionClient;

 await runInjectionScript({
 ...${JSON.stringify(internalParams)},
 routerPush: navigate,
 routerReplace: (url) => navigate(url, { history: 'replace' }),
 });
 })
 });
 } else {
 await runInjectionScript(${JSON.stringify(internalParams)});
 }`;
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('^' + ".*" + '

Skip to content
fix(astro): Preserve Clerk component stylings across view transitions#8661

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

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Already on GitHub?
Sign in
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 Merged

wobsoriano
merged 2 commits into

from

May 27, 2026
 Merged


fix(astro): Preserve Clerk component stylings across view transitions
#8661
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5d1fa3c

fix(astro): Preserve clerk component styling across view transitions


wobsoriano May 27, 2026
ceffc1e

chore: update changeset


wobsoriano May 27, 2026

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5 changes: 5 additions & 0 deletions
.changeset/astro-view-transition-styling-fix.md

View file


Open in desktop

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

Fix Clerk component styling being lost after Astro View Transitions navigations.

1 change: 1 addition & 0 deletions
integration/templates/astro-node/src/pages/transitions/index.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -10,6 +10,7 @@ import Layout from '../../layouts/ViewTransitionsLayout.astro';
 </Show>
 <Show when='signed-in'>
 <UserButton />
 <a href='/transitions/page2'>Page 2</a>
 </Show>
 </div>
</Layout>

11 changes: 11 additions & 0 deletions
integration/templates/astro-node/src/pages/transitions/page2.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,11 @@
---
import { UserButton } from '@clerk/astro/components';
import Layout from '../../layouts/ViewTransitionsLayout.astro';
---

<Layout title='Transitions page 2'>
 <div class='w-full flex justify-center'>
 <a href='/transitions'>Back</a>
 <UserButton />
 </div>
</Layout>

36 changes: 36 additions & 0 deletions
integration/tests/astro/components.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -484,6 +484,42 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 await u.po.userButton.waitForMounted();
 });

 test('preserves clerk component styling after view transitions navigations', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Sign in directly (full navigation, not view transition)
 await u.page.goToRelative('/sign-in');
 await u.po.signIn.waitForMounted();
 await u.po.signIn.signInWithEmailAndInstantPassword({ email: fakeAdmin.email, password: fakeAdmin.password });
 await u.po.expect.toBeSignedIn();

 // Go to the view-transitions-enabled page
 await u.page.goToRelative('/transitions');
 await u.po.userButton.waitForMounted();

 // Navigate to a second transitions page via link click (triggers view transition)
 await u.page.getByRole('link', { name: /Page 2/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions/page2`);
 await u.po.userButton.waitForMounted();

 // Navigate back via link click (triggers another view transition)
 await u.page.getByRole('link', { name: /Back/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions`);
 await u.po.userButton.waitForMounted();

 // Verify Emotion style elements are present in document.head after the round-trip.
 // Regression: cloneNode() on #clerk-components detached the React root from its host
 // element, causing Clerk to lose its style injection context on subsequent navigations.
 const emotionStyleCount = await page.evaluate(() => document.head.querySelectorAll('style[data-emotion]').length);
 expect(emotionStyleCount).toBeGreaterThan(0);

 // Verify #clerk-components is attached to the live document (not detached from the React root).
 const clerkRootIsAttached = await page.evaluate(() =>
 document.body.contains(document.getElementById('clerk-components')),
 );
 expect(clerkRootIsAttached).toBe(true);
 });

 test('server islands Show component shows correct states', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

Expand Down

34 changes: 23 additions & 11 deletions
packages/astro/src/integration/snippets.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,29 +71,41 @@ export function buildPageLoadSnippet({
 }

 if (transitionEnabledOnThisPage()) {
 // We must do the dynamic imports within the event listeners because otherwise we may race and miss initial astro:page-load
 document.addEventListener('astro:before-swap', async (e) => {
 const { swapFunctions } = await import('astro:transitions/client');
 // Start loading eagerly without awaiting so both listeners share one module load.
 // Listeners are registered synchronously here, which avoids the race where awaiting
 // before addEventListener would cause us to miss the initial astro:page-load event.
 const transitionClient = import('astro:transitions/client');

 const clerkComponents = document.querySelector('#clerk-components');
// Keep the div element added by Clerk
if (clerkComponents) {
 const clonedEl = clerkComponents.cloneNode(true);
e.newDocument.body.appendChild(clonedEl);
 document.addEventListener('astro:before-swap', async (e) => {
const nextDocument = e.newDocument;
const nextHead = nextDocument?.head;
if (!nextDocument || !nextHead) {
return;
 }

 e.swap = () => swapDocument(swapFunctions, e.newDocument);
 const { swapFunctions } = await transitionClient;

 e.swap = () => {
 const clerkComponents = document.querySelector('#clerk-components');
 // Move (not clone) the element so Clerk's React root stays bound to its host node
 // across the body swap. Cloning produces a detached copy with no React associated,
 // which breaks style injection on subsequent navigations.
 if (clerkComponents) {
 nextDocument.body.appendChild(clerkComponents);
 }
 swapDocument(swapFunctions, nextDocument);
 };
 });

 document.addEventListener('astro:page-load', async (e) => {
 const { navigate } = await import('astro:transitions/client');
 const { navigate } = await transitionClient;

 await runInjectionScript({
 ...${JSON.stringify(internalParams)},
 routerPush: navigate,
 routerReplace: (url) => navigate(url, { history: 'replace' }),
 });
 })
 });
 } else {
 await runInjectionScript(${JSON.stringify(internalParams)});
 }`;
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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); }
})();
})();

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fix(astro): Preserve Clerk component stylings across view transitions#8661

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 Merged

wobsoriano
merged 2 commits into

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May 27, 2026
 Merged


fix(astro): Preserve Clerk component stylings across view transitions
#8661
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5d1fa3c

fix(astro): Preserve clerk component styling across view transitions


wobsoriano May 27, 2026
ceffc1e

chore: update changeset


wobsoriano May 27, 2026

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5 changes: 5 additions & 0 deletions
.changeset/astro-view-transition-styling-fix.md

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

Fix Clerk component styling being lost after Astro View Transitions navigations.

1 change: 1 addition & 0 deletions
integration/templates/astro-node/src/pages/transitions/index.astro

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Original file line numberDiff line numberDiff line change
Expand Up@@ -10,6 +10,7 @@ import Layout from '../../layouts/ViewTransitionsLayout.astro';
 </Show>
 <Show when='signed-in'>
 <UserButton />
 <a href='/transitions/page2'>Page 2</a>
 </Show>
 </div>
</Layout>

11 changes: 11 additions & 0 deletions
integration/templates/astro-node/src/pages/transitions/page2.astro

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,11 @@
---
import { UserButton } from '@clerk/astro/components';
import Layout from '../../layouts/ViewTransitionsLayout.astro';
---

<Layout title='Transitions page 2'>
 <div class='w-full flex justify-center'>
 <a href='/transitions'>Back</a>
 <UserButton />
 </div>
</Layout>

36 changes: 36 additions & 0 deletions
integration/tests/astro/components.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -484,6 +484,42 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 await u.po.userButton.waitForMounted();
 });

 test('preserves clerk component styling after view transitions navigations', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Sign in directly (full navigation, not view transition)
 await u.page.goToRelative('/sign-in');
 await u.po.signIn.waitForMounted();
 await u.po.signIn.signInWithEmailAndInstantPassword({ email: fakeAdmin.email, password: fakeAdmin.password });
 await u.po.expect.toBeSignedIn();

 // Go to the view-transitions-enabled page
 await u.page.goToRelative('/transitions');
 await u.po.userButton.waitForMounted();

 // Navigate to a second transitions page via link click (triggers view transition)
 await u.page.getByRole('link', { name: /Page 2/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions/page2`);
 await u.po.userButton.waitForMounted();

 // Navigate back via link click (triggers another view transition)
 await u.page.getByRole('link', { name: /Back/i }).click();
 await u.page.waitForURL(`${app.serverUrl}/transitions`);
 await u.po.userButton.waitForMounted();

 // Verify Emotion style elements are present in document.head after the round-trip.
 // Regression: cloneNode() on #clerk-components detached the React root from its host
 // element, causing Clerk to lose its style injection context on subsequent navigations.
 const emotionStyleCount = await page.evaluate(() => document.head.querySelectorAll('style[data-emotion]').length);
 expect(emotionStyleCount).toBeGreaterThan(0);

 // Verify #clerk-components is attached to the live document (not detached from the React root).
 const clerkRootIsAttached = await page.evaluate(() =>
 document.body.contains(document.getElementById('clerk-components')),
 );
 expect(clerkRootIsAttached).toBe(true);
 });

 test('server islands Show component shows correct states', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

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34 changes: 23 additions & 11 deletions
packages/astro/src/integration/snippets.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -71,29 +71,41 @@ export function buildPageLoadSnippet({
 }

 if (transitionEnabledOnThisPage()) {
 // We must do the dynamic imports within the event listeners because otherwise we may race and miss initial astro:page-load
 document.addEventListener('astro:before-swap', async (e) => {
 const { swapFunctions } = await import('astro:transitions/client');
 // Start loading eagerly without awaiting so both listeners share one module load.
 // Listeners are registered synchronously here, which avoids the race where awaiting
 // before addEventListener would cause us to miss the initial astro:page-load event.
 const transitionClient = import('astro:transitions/client');

 const clerkComponents = document.querySelector('#clerk-components');
// Keep the div element added by Clerk
if (clerkComponents) {
 const clonedEl = clerkComponents.cloneNode(true);
e.newDocument.body.appendChild(clonedEl);
 document.addEventListener('astro:before-swap', async (e) => {
const nextDocument = e.newDocument;
const nextHead = nextDocument?.head;
if (!nextDocument || !nextHead) {
return;
 }

 e.swap = () => swapDocument(swapFunctions, e.newDocument);
 const { swapFunctions } = await transitionClient;

 e.swap = () => {
 const clerkComponents = document.querySelector('#clerk-components');
 // Move (not clone) the element so Clerk's React root stays bound to its host node
 // across the body swap. Cloning produces a detached copy with no React associated,
 // which breaks style injection on subsequent navigations.
 if (clerkComponents) {
 nextDocument.body.appendChild(clerkComponents);
 }
 swapDocument(swapFunctions, nextDocument);
 };
 });

 document.addEventListener('astro:page-load', async (e) => {
 const { navigate } = await import('astro:transitions/client');
 const { navigate } = await transitionClient;

 await runInjectionScript({
 ...${JSON.stringify(internalParams)},
 routerPush: navigate,
 routerReplace: (url) => navigate(url, { history: 'replace' }),
 });
 })
 });
 } else {
 await runInjectionScript(${JSON.stringify(internalParams)});
 }`;
Expand Down
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