fix(astro): Automatically use CSR Show component for prerendered pages#7710

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Merged
wobsoriano merged 7 commits into from
Jan 31, 2026
Merged

fix(astro): Automatically use CSR Show component for prerendered pages #7710

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dc35671
chore: add changeset
wobsoriano Jan 30, 2026
e8a7e0c
fix(astro): Automatically use CSR control components for prerendered …
wobsoriano Jan 30, 2026
9afbe03
chore: adapt prerendered tests to use Show component
wobsoriano Jan 30, 2026
fc04fe3
chore: add changeset
wobsoriano Jan 30, 2026
1cd67a7
fix: guard Astro.locals
wobsoriano Jan 30, 2026
53495be
Merge branch 'main' into rob/fix-astro-prerendered-core-3
wobsoriano Jan 30, 2026
59a0875
Merge branch 'main' into rob/fix-astro-prerendered-core-3
wobsoriano Jan 31, 2026
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5 changes: 5 additions & 0 deletions .changeset/pink-dingos-exercise.md
View file
Open in desktop
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@clerk/astro": patch
---

Fixed an error when using Control components in prerendered pages
5 changes: 5 additions & 0 deletions integration/templates/astro-node/src/pages/index.astro
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -64,6 +64,11 @@ import { Show, SignOutButton, OrganizationSwitcher } from '@clerk/astro/componen
title='For members'
body='Learn how Astro works and explore the official API docs.'
/>
<Card
href='/prerendered'
title='Prerendered Page'
body='Test prerendered pages with Clerk control components'
/>
</Show>
</ul>
</Layout>
Expand Down
25 changes: 25 additions & 0 deletions integration/templates/astro-node/src/pages/prerendered.astro
View file
Open in desktop
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
---
import { Show } from '@clerk/astro/components';
import Layout from '../layouts/Layout.astro';

// This page is prerendered at build time despite output: 'server' mode
export const prerender = true;
---

<Layout title='Prerendered Page Test'>
<h1>Prerendered Page with Clerk Components</h1>

<p>This page is statically generated at build time (prerender = true) in server output mode.</p>

<Show when='signed-in'>
<div id="signed-in-content">
<p>✅ You are signed in! (This content should be hidden initially and shown after client-side auth check)</p>
</div>
</Show>

<Show when='signed-out'>
<div id="signed-out-content">
<p>🔒 You are signed out. (This content should be visible initially for signed-out users)</p>
</div>
</Show>
</Layout>
23 changes: 23 additions & 0 deletions integration/tests/astro/components.test.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -513,4 +513,27 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
// await expect(u.page.getByText('Loading')).toBeHidden();
await expect(u.page.getByText("I'm an admin")).toBeVisible({ timeout: 15_000 });
});

test('Show component works correctly on prerendered pages', async ({ page, context }) => {
const u = createTestUtils({ app, page, context });

// Visit prerendered page when signed out
await u.page.goToRelative('/prerendered');
await expect(u.page.getByText('🔒 You are signed out.')).toBeVisible();
await expect(u.page.getByText('✅ You are signed in!')).not.toBeVisible();

// Sign in
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();

// Visit prerendered page when signed in
await u.page.goToRelative('/prerendered');
await expect(u.page.getByText('✅ You are signed in!')).toBeVisible();
await expect(u.page.getByText('🔒 You are signed out.')).not.toBeVisible();
});
});
5 changes: 4 additions & 1 deletion packages/astro/src/astro-components/control/Show.astro
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -22,7 +22,10 @@ if (typeof when === 'undefined') {

const props = { ...rest, when };

const ShowComponent = isStaticOutput(isStatic) ? ShowCSR : ShowSSR;
// If user explicitly sets isStatic prop, honor it
// Otherwise, detect based on runtime (whether auth function exists)
const shouldUseCSR = isStatic !== undefined ? isStaticOutput(isStatic) : !Astro.locals?.auth;
const ShowComponent = shouldUseCSR ? ShowCSR : ShowSSR;
Comment thread
coderabbitai[bot] marked this conversation as resolved.

// Note: Astro server islands also use a "fallback" slot for loading states
// See: https://docs.astro.build/en/guides/server-islands/#server-island-fallback-content
Expand Down
Loading
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n 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;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
fix(astro): Automatically use CSR Show component for prerendered pages#7710

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to your account

 Merged

wobsoriano
merged 7 commits into

from

Jan 31, 2026
 Merged


fix(astro): Automatically use CSR Show component for prerendered pages
#7710
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dc35671

chore: add changeset


wobsoriano Jan 30, 2026
e8a7e0c

fix(astro): Automatically use CSR control components for prerendered …


wobsoriano Jan 30, 2026
9afbe03

chore: adapt prerendered tests to use Show component


wobsoriano Jan 30, 2026
fc04fe3

chore: add changeset


wobsoriano Jan 30, 2026
1cd67a7

fix: guard Astro.locals


wobsoriano Jan 30, 2026
53495be

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 30, 2026
59a0875

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 31, 2026

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5 changes: 5 additions & 0 deletions
.changeset/pink-dingos-exercise.md

View file


Open in desktop

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

Fixed an error when using Control components in prerendered pages

5 changes: 5 additions & 0 deletions
integration/templates/astro-node/src/pages/index.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -64,6 +64,11 @@ import { Show, SignOutButton, OrganizationSwitcher } from '@clerk/astro/componen
 title='For members'
 body='Learn how Astro works and explore the official API docs.'
 />
 <Card
 href='/prerendered'
 title='Prerendered Page'
 body='Test prerendered pages with Clerk control components'
 />
 </Show>
 </ul>
</Layout>
Expand Down

25 changes: 25 additions & 0 deletions
integration/templates/astro-node/src/pages/prerendered.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
---
import { Show } from '@clerk/astro/components';
import Layout from '../layouts/Layout.astro';

// This page is prerendered at build time despite output: 'server' mode
export const prerender = true;
---

<Layout title='Prerendered Page Test'>
 <h1>Prerendered Page with Clerk Components</h1>

 <p>This page is statically generated at build time (prerender = true) in server output mode.</p>

 <Show when='signed-in'>
 <div id="signed-in-content">
 <p>✅ You are signed in! (This content should be hidden initially and shown after client-side auth check)</p>
 </div>
 </Show>

 <Show when='signed-out'>
 <div id="signed-out-content">
 <p>🔒 You are signed out. (This content should be visible initially for signed-out users)</p>
 </div>
 </Show>
</Layout>

23 changes: 23 additions & 0 deletions
integration/tests/astro/components.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -513,4 +513,27 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 // await expect(u.page.getByText('Loading')).toBeHidden();
 await expect(u.page.getByText("I'm an admin")).toBeVisible({ timeout: 15_000 });
 });

 test('Show component works correctly on prerendered pages', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Visit prerendered page when signed out
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('🔒 You are signed out.')).toBeVisible();
 await expect(u.page.getByText('✅ You are signed in!')).not.toBeVisible();

 // Sign in
 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();

 // Visit prerendered page when signed in
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('✅ You are signed in!')).toBeVisible();
 await expect(u.page.getByText('🔒 You are signed out.')).not.toBeVisible();
 });
});

5 changes: 4 additions & 1 deletion
packages/astro/src/astro-components/control/Show.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -22,7 +22,10 @@ if (typeof when === 'undefined') {

const props = { ...rest, when };

const ShowComponent = isStaticOutput(isStatic) ? ShowCSR : ShowSSR;
// If user explicitly sets isStatic prop, honor it
// Otherwise, detect based on runtime (whether auth function exists)
const shouldUseCSR = isStatic !== undefined ? isStaticOutput(isStatic) : !Astro.locals?.auth;
const ShowComponent = shouldUseCSR ? ShowCSR : ShowSSR;
Comment thread
coderabbitai[bot] marked this conversation as resolved.


// Note: Astro server islands also use a "fallback" slot for loading states
// See: https://docs.astro.build/en/guides/server-islands/#server-island-fallback-content
Expand Down
Loading

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

Skip to content
fix(astro): Automatically use CSR Show component for prerendered pages#7710

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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.

 Sign up for GitHub

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privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

wobsoriano
merged 7 commits into

from

Jan 31, 2026
 Merged


fix(astro): Automatically use CSR Show component for prerendered pages
#7710
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7 commits


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dc35671

chore: add changeset


wobsoriano Jan 30, 2026
e8a7e0c

fix(astro): Automatically use CSR control components for prerendered …


wobsoriano Jan 30, 2026
9afbe03

chore: adapt prerendered tests to use Show component


wobsoriano Jan 30, 2026
fc04fe3

chore: add changeset


wobsoriano Jan 30, 2026
1cd67a7

fix: guard Astro.locals


wobsoriano Jan 30, 2026
53495be

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 30, 2026
59a0875

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 31, 2026

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5 changes: 5 additions & 0 deletions
.changeset/pink-dingos-exercise.md

View file


Open in desktop

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

Fixed an error when using Control components in prerendered pages

5 changes: 5 additions & 0 deletions
integration/templates/astro-node/src/pages/index.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -64,6 +64,11 @@ import { Show, SignOutButton, OrganizationSwitcher } from '@clerk/astro/componen
 title='For members'
 body='Learn how Astro works and explore the official API docs.'
 />
 <Card
 href='/prerendered'
 title='Prerendered Page'
 body='Test prerendered pages with Clerk control components'
 />
 </Show>
 </ul>
</Layout>
Expand Down

25 changes: 25 additions & 0 deletions
integration/templates/astro-node/src/pages/prerendered.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
---
import { Show } from '@clerk/astro/components';
import Layout from '../layouts/Layout.astro';

// This page is prerendered at build time despite output: 'server' mode
export const prerender = true;
---

<Layout title='Prerendered Page Test'>
 <h1>Prerendered Page with Clerk Components</h1>

 <p>This page is statically generated at build time (prerender = true) in server output mode.</p>

 <Show when='signed-in'>
 <div id="signed-in-content">
 <p>✅ You are signed in! (This content should be hidden initially and shown after client-side auth check)</p>
 </div>
 </Show>

 <Show when='signed-out'>
 <div id="signed-out-content">
 <p>🔒 You are signed out. (This content should be visible initially for signed-out users)</p>
 </div>
 </Show>
</Layout>

23 changes: 23 additions & 0 deletions
integration/tests/astro/components.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -513,4 +513,27 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 // await expect(u.page.getByText('Loading')).toBeHidden();
 await expect(u.page.getByText("I'm an admin")).toBeVisible({ timeout: 15_000 });
 });

 test('Show component works correctly on prerendered pages', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Visit prerendered page when signed out
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('🔒 You are signed out.')).toBeVisible();
 await expect(u.page.getByText('✅ You are signed in!')).not.toBeVisible();

 // Sign in
 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();

 // Visit prerendered page when signed in
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('✅ You are signed in!')).toBeVisible();
 await expect(u.page.getByText('🔒 You are signed out.')).not.toBeVisible();
 });
});

5 changes: 4 additions & 1 deletion
packages/astro/src/astro-components/control/Show.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -22,7 +22,10 @@ if (typeof when === 'undefined') {

const props = { ...rest, when };

const ShowComponent = isStaticOutput(isStatic) ? ShowCSR : ShowSSR;
// If user explicitly sets isStatic prop, honor it
// Otherwise, detect based on runtime (whether auth function exists)
const shouldUseCSR = isStatic !== undefined ? isStaticOutput(isStatic) : !Astro.locals?.auth;
const ShowComponent = shouldUseCSR ? ShowCSR : ShowSSR;
Comment thread
coderabbitai[bot] marked this conversation as resolved.


// Note: Astro server islands also use a "fallback" slot for loading states
// See: https://docs.astro.build/en/guides/server-islands/#server-island-fallback-content
Expand Down
Loading

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

Skip to content
fix(astro): Automatically use CSR Show component for prerendered pages#7710

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

wobsoriano
merged 7 commits into

from

Jan 31, 2026
 Merged


fix(astro): Automatically use CSR Show component for prerendered pages
#7710
Show file tree
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7 commits


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dc35671

chore: add changeset


wobsoriano Jan 30, 2026
e8a7e0c

fix(astro): Automatically use CSR control components for prerendered …


wobsoriano Jan 30, 2026
9afbe03

chore: adapt prerendered tests to use Show component


wobsoriano Jan 30, 2026
fc04fe3

chore: add changeset


wobsoriano Jan 30, 2026
1cd67a7

fix: guard Astro.locals


wobsoriano Jan 30, 2026
53495be

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 30, 2026
59a0875

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 31, 2026

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5 changes: 5 additions & 0 deletions
.changeset/pink-dingos-exercise.md

View file


Open in desktop

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

Fixed an error when using Control components in prerendered pages

5 changes: 5 additions & 0 deletions
integration/templates/astro-node/src/pages/index.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -64,6 +64,11 @@ import { Show, SignOutButton, OrganizationSwitcher } from '@clerk/astro/componen
 title='For members'
 body='Learn how Astro works and explore the official API docs.'
 />
 <Card
 href='/prerendered'
 title='Prerendered Page'
 body='Test prerendered pages with Clerk control components'
 />
 </Show>
 </ul>
</Layout>
Expand Down

25 changes: 25 additions & 0 deletions
integration/templates/astro-node/src/pages/prerendered.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
---
import { Show } from '@clerk/astro/components';
import Layout from '../layouts/Layout.astro';

// This page is prerendered at build time despite output: 'server' mode
export const prerender = true;
---

<Layout title='Prerendered Page Test'>
 <h1>Prerendered Page with Clerk Components</h1>

 <p>This page is statically generated at build time (prerender = true) in server output mode.</p>

 <Show when='signed-in'>
 <div id="signed-in-content">
 <p>✅ You are signed in! (This content should be hidden initially and shown after client-side auth check)</p>
 </div>
 </Show>

 <Show when='signed-out'>
 <div id="signed-out-content">
 <p>🔒 You are signed out. (This content should be visible initially for signed-out users)</p>
 </div>
 </Show>
</Layout>

23 changes: 23 additions & 0 deletions
integration/tests/astro/components.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -513,4 +513,27 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 // await expect(u.page.getByText('Loading')).toBeHidden();
 await expect(u.page.getByText("I'm an admin")).toBeVisible({ timeout: 15_000 });
 });

 test('Show component works correctly on prerendered pages', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Visit prerendered page when signed out
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('🔒 You are signed out.')).toBeVisible();
 await expect(u.page.getByText('✅ You are signed in!')).not.toBeVisible();

 // Sign in
 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();

 // Visit prerendered page when signed in
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('✅ You are signed in!')).toBeVisible();
 await expect(u.page.getByText('🔒 You are signed out.')).not.toBeVisible();
 });
});

5 changes: 4 additions & 1 deletion
packages/astro/src/astro-components/control/Show.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -22,7 +22,10 @@ if (typeof when === 'undefined') {

const props = { ...rest, when };

const ShowComponent = isStaticOutput(isStatic) ? ShowCSR : ShowSSR;
// If user explicitly sets isStatic prop, honor it
// Otherwise, detect based on runtime (whether auth function exists)
const shouldUseCSR = isStatic !== undefined ? isStaticOutput(isStatic) : !Astro.locals?.auth;
const ShowComponent = shouldUseCSR ? ShowCSR : ShowSSR;
Comment thread
coderabbitai[bot] marked this conversation as resolved.


// Note: Astro server islands also use a "fallback" slot for loading states
// See: https://docs.astro.build/en/guides/server-islands/#server-island-fallback-content
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
fix(astro): Automatically use CSR Show component for prerendered pages#7710

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 Merged

wobsoriano
merged 7 commits into

from

Jan 31, 2026
 Merged


fix(astro): Automatically use CSR Show component for prerendered pages
#7710
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dc35671

chore: add changeset


wobsoriano Jan 30, 2026
e8a7e0c

fix(astro): Automatically use CSR control components for prerendered …


wobsoriano Jan 30, 2026
9afbe03

chore: adapt prerendered tests to use Show component


wobsoriano Jan 30, 2026
fc04fe3

chore: add changeset


wobsoriano Jan 30, 2026
1cd67a7

fix: guard Astro.locals


wobsoriano Jan 30, 2026
53495be

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 30, 2026
59a0875

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 31, 2026

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5 changes: 5 additions & 0 deletions
.changeset/pink-dingos-exercise.md

View file


Open in desktop

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

Fixed an error when using Control components in prerendered pages

5 changes: 5 additions & 0 deletions
integration/templates/astro-node/src/pages/index.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -64,6 +64,11 @@ import { Show, SignOutButton, OrganizationSwitcher } from '@clerk/astro/componen
 title='For members'
 body='Learn how Astro works and explore the official API docs.'
 />
 <Card
 href='/prerendered'
 title='Prerendered Page'
 body='Test prerendered pages with Clerk control components'
 />
 </Show>
 </ul>
</Layout>
Expand Down

25 changes: 25 additions & 0 deletions
integration/templates/astro-node/src/pages/prerendered.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
---
import { Show } from '@clerk/astro/components';
import Layout from '../layouts/Layout.astro';

// This page is prerendered at build time despite output: 'server' mode
export const prerender = true;
---

<Layout title='Prerendered Page Test'>
 <h1>Prerendered Page with Clerk Components</h1>

 <p>This page is statically generated at build time (prerender = true) in server output mode.</p>

 <Show when='signed-in'>
 <div id="signed-in-content">
 <p>✅ You are signed in! (This content should be hidden initially and shown after client-side auth check)</p>
 </div>
 </Show>

 <Show when='signed-out'>
 <div id="signed-out-content">
 <p>🔒 You are signed out. (This content should be visible initially for signed-out users)</p>
 </div>
 </Show>
</Layout>

23 changes: 23 additions & 0 deletions
integration/tests/astro/components.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -513,4 +513,27 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 // await expect(u.page.getByText('Loading')).toBeHidden();
 await expect(u.page.getByText("I'm an admin")).toBeVisible({ timeout: 15_000 });
 });

 test('Show component works correctly on prerendered pages', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Visit prerendered page when signed out
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('🔒 You are signed out.')).toBeVisible();
 await expect(u.page.getByText('✅ You are signed in!')).not.toBeVisible();

 // Sign in
 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();

 // Visit prerendered page when signed in
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('✅ You are signed in!')).toBeVisible();
 await expect(u.page.getByText('🔒 You are signed out.')).not.toBeVisible();
 });
});

5 changes: 4 additions & 1 deletion
packages/astro/src/astro-components/control/Show.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -22,7 +22,10 @@ if (typeof when === 'undefined') {

const props = { ...rest, when };

const ShowComponent = isStaticOutput(isStatic) ? ShowCSR : ShowSSR;
// If user explicitly sets isStatic prop, honor it
// Otherwise, detect based on runtime (whether auth function exists)
const shouldUseCSR = isStatic !== undefined ? isStaticOutput(isStatic) : !Astro.locals?.auth;
const ShowComponent = shouldUseCSR ? ShowCSR : ShowSSR;
Comment thread
coderabbitai[bot] marked this conversation as resolved.


// Note: Astro server islands also use a "fallback" slot for loading states
// See: https://docs.astro.build/en/guides/server-islands/#server-island-fallback-content
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(astro): Automatically use CSR Show component for prerendered pages#7710

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to your account

 Merged

wobsoriano
merged 7 commits into

from

Jan 31, 2026
 Merged


fix(astro): Automatically use CSR Show component for prerendered pages
#7710
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dc35671

chore: add changeset


wobsoriano Jan 30, 2026
e8a7e0c

fix(astro): Automatically use CSR control components for prerendered …


wobsoriano Jan 30, 2026
9afbe03

chore: adapt prerendered tests to use Show component


wobsoriano Jan 30, 2026
fc04fe3

chore: add changeset


wobsoriano Jan 30, 2026
1cd67a7

fix: guard Astro.locals


wobsoriano Jan 30, 2026
53495be

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 30, 2026
59a0875

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 31, 2026

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5 changes: 5 additions & 0 deletions
.changeset/pink-dingos-exercise.md

View file


Open in desktop

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

Fixed an error when using Control components in prerendered pages

5 changes: 5 additions & 0 deletions
integration/templates/astro-node/src/pages/index.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -64,6 +64,11 @@ import { Show, SignOutButton, OrganizationSwitcher } from '@clerk/astro/componen
 title='For members'
 body='Learn how Astro works and explore the official API docs.'
 />
 <Card
 href='/prerendered'
 title='Prerendered Page'
 body='Test prerendered pages with Clerk control components'
 />
 </Show>
 </ul>
</Layout>
Expand Down

25 changes: 25 additions & 0 deletions
integration/templates/astro-node/src/pages/prerendered.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
---
import { Show } from '@clerk/astro/components';
import Layout from '../layouts/Layout.astro';

// This page is prerendered at build time despite output: 'server' mode
export const prerender = true;
---

<Layout title='Prerendered Page Test'>
 <h1>Prerendered Page with Clerk Components</h1>

 <p>This page is statically generated at build time (prerender = true) in server output mode.</p>

 <Show when='signed-in'>
 <div id="signed-in-content">
 <p>✅ You are signed in! (This content should be hidden initially and shown after client-side auth check)</p>
 </div>
 </Show>

 <Show when='signed-out'>
 <div id="signed-out-content">
 <p>🔒 You are signed out. (This content should be visible initially for signed-out users)</p>
 </div>
 </Show>
</Layout>

23 changes: 23 additions & 0 deletions
integration/tests/astro/components.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -513,4 +513,27 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 // await expect(u.page.getByText('Loading')).toBeHidden();
 await expect(u.page.getByText("I'm an admin")).toBeVisible({ timeout: 15_000 });
 });

 test('Show component works correctly on prerendered pages', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Visit prerendered page when signed out
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('🔒 You are signed out.')).toBeVisible();
 await expect(u.page.getByText('✅ You are signed in!')).not.toBeVisible();

 // Sign in
 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();

 // Visit prerendered page when signed in
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('✅ You are signed in!')).toBeVisible();
 await expect(u.page.getByText('🔒 You are signed out.')).not.toBeVisible();
 });
});

5 changes: 4 additions & 1 deletion
packages/astro/src/astro-components/control/Show.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -22,7 +22,10 @@ if (typeof when === 'undefined') {

const props = { ...rest, when };

const ShowComponent = isStaticOutput(isStatic) ? ShowCSR : ShowSSR;
// If user explicitly sets isStatic prop, honor it
// Otherwise, detect based on runtime (whether auth function exists)
const shouldUseCSR = isStatic !== undefined ? isStaticOutput(isStatic) : !Astro.locals?.auth;
const ShowComponent = shouldUseCSR ? ShowCSR : ShowSSR;
Comment thread
coderabbitai[bot] marked this conversation as resolved.


// Note: Astro server islands also use a "fallback" slot for loading states
// See: https://docs.astro.build/en/guides/server-islands/#server-island-fallback-content
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(astro): Automatically use CSR Show component for prerendered pages#7710

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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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privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

wobsoriano
merged 7 commits into

from

Jan 31, 2026
 Merged


fix(astro): Automatically use CSR Show component for prerendered pages
#7710
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7 commits


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dc35671

chore: add changeset


wobsoriano Jan 30, 2026
e8a7e0c

fix(astro): Automatically use CSR control components for prerendered …


wobsoriano Jan 30, 2026
9afbe03

chore: adapt prerendered tests to use Show component


wobsoriano Jan 30, 2026
fc04fe3

chore: add changeset


wobsoriano Jan 30, 2026
1cd67a7

fix: guard Astro.locals


wobsoriano Jan 30, 2026
53495be

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 30, 2026
59a0875

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 31, 2026

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5 changes: 5 additions & 0 deletions
.changeset/pink-dingos-exercise.md

View file


Open in desktop

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

Fixed an error when using Control components in prerendered pages

5 changes: 5 additions & 0 deletions
integration/templates/astro-node/src/pages/index.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -64,6 +64,11 @@ import { Show, SignOutButton, OrganizationSwitcher } from '@clerk/astro/componen
 title='For members'
 body='Learn how Astro works and explore the official API docs.'
 />
 <Card
 href='/prerendered'
 title='Prerendered Page'
 body='Test prerendered pages with Clerk control components'
 />
 </Show>
 </ul>
</Layout>
Expand Down

25 changes: 25 additions & 0 deletions
integration/templates/astro-node/src/pages/prerendered.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
---
import { Show } from '@clerk/astro/components';
import Layout from '../layouts/Layout.astro';

// This page is prerendered at build time despite output: 'server' mode
export const prerender = true;
---

<Layout title='Prerendered Page Test'>
 <h1>Prerendered Page with Clerk Components</h1>

 <p>This page is statically generated at build time (prerender = true) in server output mode.</p>

 <Show when='signed-in'>
 <div id="signed-in-content">
 <p>✅ You are signed in! (This content should be hidden initially and shown after client-side auth check)</p>
 </div>
 </Show>

 <Show when='signed-out'>
 <div id="signed-out-content">
 <p>🔒 You are signed out. (This content should be visible initially for signed-out users)</p>
 </div>
 </Show>
</Layout>

23 changes: 23 additions & 0 deletions
integration/tests/astro/components.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -513,4 +513,27 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 // await expect(u.page.getByText('Loading')).toBeHidden();
 await expect(u.page.getByText("I'm an admin")).toBeVisible({ timeout: 15_000 });
 });

 test('Show component works correctly on prerendered pages', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Visit prerendered page when signed out
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('🔒 You are signed out.')).toBeVisible();
 await expect(u.page.getByText('✅ You are signed in!')).not.toBeVisible();

 // Sign in
 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();

 // Visit prerendered page when signed in
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('✅ You are signed in!')).toBeVisible();
 await expect(u.page.getByText('🔒 You are signed out.')).not.toBeVisible();
 });
});

5 changes: 4 additions & 1 deletion
packages/astro/src/astro-components/control/Show.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -22,7 +22,10 @@ if (typeof when === 'undefined') {

const props = { ...rest, when };

const ShowComponent = isStaticOutput(isStatic) ? ShowCSR : ShowSSR;
// If user explicitly sets isStatic prop, honor it
// Otherwise, detect based on runtime (whether auth function exists)
const shouldUseCSR = isStatic !== undefined ? isStaticOutput(isStatic) : !Astro.locals?.auth;
const ShowComponent = shouldUseCSR ? ShowCSR : ShowSSR;
Comment thread
coderabbitai[bot] marked this conversation as resolved.


// Note: Astro server islands also use a "fallback" slot for loading states
// See: https://docs.astro.build/en/guides/server-islands/#server-island-fallback-content
Expand Down
Loading

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

Skip to content
fix(astro): Automatically use CSR Show component for prerendered pages#7710

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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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privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

wobsoriano
merged 7 commits into

from

Jan 31, 2026
 Merged


fix(astro): Automatically use CSR Show component for prerendered pages
#7710
Show file tree
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7 commits


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Hold shift + click to select a range
dc35671

chore: add changeset


wobsoriano Jan 30, 2026
e8a7e0c

fix(astro): Automatically use CSR control components for prerendered …


wobsoriano Jan 30, 2026
9afbe03

chore: adapt prerendered tests to use Show component


wobsoriano Jan 30, 2026
fc04fe3

chore: add changeset


wobsoriano Jan 30, 2026
1cd67a7

fix: guard Astro.locals


wobsoriano Jan 30, 2026
53495be

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 30, 2026
59a0875

Merge branch 'main' into rob/fix-astro-prerendered-core-3


wobsoriano Jan 31, 2026

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5 changes: 5 additions & 0 deletions
.changeset/pink-dingos-exercise.md

View file


Open in desktop

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

Fixed an error when using Control components in prerendered pages

5 changes: 5 additions & 0 deletions
integration/templates/astro-node/src/pages/index.astro

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -64,6 +64,11 @@ import { Show, SignOutButton, OrganizationSwitcher } from '@clerk/astro/componen
 title='For members'
 body='Learn how Astro works and explore the official API docs.'
 />
 <Card
 href='/prerendered'
 title='Prerendered Page'
 body='Test prerendered pages with Clerk control components'
 />
 </Show>
 </ul>
</Layout>
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25 changes: 25 additions & 0 deletions
integration/templates/astro-node/src/pages/prerendered.astro

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
---
import { Show } from '@clerk/astro/components';
import Layout from '../layouts/Layout.astro';

// This page is prerendered at build time despite output: 'server' mode
export const prerender = true;
---

<Layout title='Prerendered Page Test'>
 <h1>Prerendered Page with Clerk Components</h1>

 <p>This page is statically generated at build time (prerender = true) in server output mode.</p>

 <Show when='signed-in'>
 <div id="signed-in-content">
 <p>✅ You are signed in! (This content should be hidden initially and shown after client-side auth check)</p>
 </div>
 </Show>

 <Show when='signed-out'>
 <div id="signed-out-content">
 <p>🔒 You are signed out. (This content should be visible initially for signed-out users)</p>
 </div>
 </Show>
</Layout>

23 changes: 23 additions & 0 deletions
integration/tests/astro/components.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -513,4 +513,27 @@ testAgainstRunningApps({ withPattern: ['astro.node.withCustomRoles'] })('basic f
 // await expect(u.page.getByText('Loading')).toBeHidden();
 await expect(u.page.getByText("I'm an admin")).toBeVisible({ timeout: 15_000 });
 });

 test('Show component works correctly on prerendered pages', async ({ page, context }) => {
 const u = createTestUtils({ app, page, context });

 // Visit prerendered page when signed out
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('🔒 You are signed out.')).toBeVisible();
 await expect(u.page.getByText('✅ You are signed in!')).not.toBeVisible();

 // Sign in
 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();

 // Visit prerendered page when signed in
 await u.page.goToRelative('/prerendered');
 await expect(u.page.getByText('✅ You are signed in!')).toBeVisible();
 await expect(u.page.getByText('🔒 You are signed out.')).not.toBeVisible();
 });
});

5 changes: 4 additions & 1 deletion
packages/astro/src/astro-components/control/Show.astro

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Original file line numberDiff line numberDiff line change
Expand Up@@ -22,7 +22,10 @@ if (typeof when === 'undefined') {

const props = { ...rest, when };

const ShowComponent = isStaticOutput(isStatic) ? ShowCSR : ShowSSR;
// If user explicitly sets isStatic prop, honor it
// Otherwise, detect based on runtime (whether auth function exists)
const shouldUseCSR = isStatic !== undefined ? isStaticOutput(isStatic) : !Astro.locals?.auth;
const ShowComponent = shouldUseCSR ? ShowCSR : ShowSSR;
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// Note: Astro server islands also use a "fallback" slot for loading states
// See: https://docs.astro.build/en/guides/server-islands/#server-island-fallback-content
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