feat(fastify): Add enableHandshake option to plugin - #8563

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feat(fastify): Add enableHandshake option to plugin#8563
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  • pnpm test runs as expected.
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  • (If applicable) JSDoc comments have been added or updated for any package exports
  • (If applicable) Documentation has been updated

Type of change

  • 🐛 Bug fix
  • 🌟 New feature
  • 🔨 Breaking change
  • 📖 Refactoring / dependency upgrade / documentation
  • other:

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🦋 Changeset detected

Latest commit: b83ba02

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

This PR includes changesets to release 1 package
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📒 Files selected for processing (4)
  • .changeset/sixty-lobsters-jump.md
  • packages/fastify/src/__tests__/withClerkMiddleware.test.ts
  • packages/fastify/src/types.ts
  • packages/fastify/src/withClerkMiddleware.ts
📝 Walkthrough

Walkthrough

This PR adds an optional enableHandshake configuration option to the Fastify Clerk plugin that controls whether the session verification handshake redirect flow is enabled. The option defaults to true for backward compatibility. When disabled, the middleware skips handshake status checks and redirect logic, allowing first-party backend scenarios to handle those cases directly. The change includes the type definition, conditional middleware logic, a test case validating the disabled behavior, and release documentation.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check nameStatusExplanation
Title check✅ PassedThe title accurately and concisely describes the main change: adding an enableHandshake option to the Fastify plugin.
Description check✅ PassedThe PR description uses the template format and is related to the changeset, though it lacks detailed implementation notes and has all checklist items unchecked.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check✅ PassedCheck skipped because no linked issues were found for this pull request.
Out of Scope Changes check✅ PassedCheck skipped because no linked issues were found for this pull request.

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Could you include this fix as well? https://github.com/clerk/javascript/pull/8560/changes#diff-e9357ff8f24a12a7c3f60e8fe95a0553dc35a5e7348ce2b8731ce0557474e3e5R14

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, '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" + '

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  •  (If applicable) JSDoc comments have been added or updated for any package exports
  •  (If applicable) Documentation has been updated
Type of change
  •  🐛 Bug fix
  •  🌟 New feature
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🦋 Changeset detected
Latest commit: b83ba02
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@clerk/fastifyPatch
Not sure what this means? Click here to learn what changesets are.
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Run ID: ad96a3c0-5c64-4c99-919a-e5cd7727b9d9
📥 Commits
Reviewing files that changed from the base of the PR and between 5a7225e and b83ba02.
📒 Files selected for processing (4)
  • .changeset/sixty-lobsters-jump.md
  • packages/fastify/src/__tests__/withClerkMiddleware.test.ts
  • packages/fastify/src/types.ts
  • packages/fastify/src/withClerkMiddleware.ts
📝 Walkthrough
Walkthrough
This PR adds an optional enableHandshake configuration option to the Fastify Clerk plugin that controls whether the session verification handshake redirect flow is enabled. The option defaults to true for backward compatibility. When disabled, the middleware skips handshake status checks and redirect logic, allowing first-party backend scenarios to handle those cases directly. The change includes the type definition, conditional middleware logic, a test case validating the disabled behavior, and release documentation.
Estimated code review effort
🎯 2 (Simple) | ⏱️ ~10 minutes
🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check nameStatusExplanation
Title check✅ PassedThe title accurately and concisely describes the main change: adding an enableHandshake option to the Fastify plugin.
Description check✅ PassedThe PR description uses the template format and is related to the changeset, though it lacks detailed implementation notes and has all checklist items unchecked.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check✅ PassedCheck skipped because no linked issues were found for this pull request.
Out of Scope Changes check✅ PassedCheck skipped because no linked issues were found for this pull request.
✏️ Tip: You can configure your own custom pre-merge checks in the settings.
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npm i https://pkg.pr.new/@clerk/chrome-extension@8563

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@clerk/expo
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@clerk/expo-passkeys
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@clerk/react
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@clerk/react-router
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Could you include this fix as well? https://github.com/clerk/javascript/pull/8560/changes#diff-e9357ff8f24a12a7c3f60e8fe95a0553dc35a5e7348ce2b8731ce0557474e3e5R14
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, '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('^' + ".*" + '

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  •  (If applicable) JSDoc comments have been added or updated for any package exports
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Type of change
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🦋 Changeset detected
Latest commit: b83ba02
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@clerk/fastifyPatch
Not sure what this means? Click here to learn what changesets are.
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ℹ️ Recent review info
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Configuration used: Repository YAML (base), Organization UI (inherited)
Review profile: CHILL
Plan: Pro
Run ID: ad96a3c0-5c64-4c99-919a-e5cd7727b9d9
📥 Commits
Reviewing files that changed from the base of the PR and between 5a7225e and b83ba02.
📒 Files selected for processing (4)
  • .changeset/sixty-lobsters-jump.md
  • packages/fastify/src/__tests__/withClerkMiddleware.test.ts
  • packages/fastify/src/types.ts
  • packages/fastify/src/withClerkMiddleware.ts
📝 Walkthrough
Walkthrough
This PR adds an optional enableHandshake configuration option to the Fastify Clerk plugin that controls whether the session verification handshake redirect flow is enabled. The option defaults to true for backward compatibility. When disabled, the middleware skips handshake status checks and redirect logic, allowing first-party backend scenarios to handle those cases directly. The change includes the type definition, conditional middleware logic, a test case validating the disabled behavior, and release documentation.
Estimated code review effort
🎯 2 (Simple) | ⏱️ ~10 minutes
🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check nameStatusExplanation
Title check✅ PassedThe title accurately and concisely describes the main change: adding an enableHandshake option to the Fastify plugin.
Description check✅ PassedThe PR description uses the template format and is related to the changeset, though it lacks detailed implementation notes and has all checklist items unchecked.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check✅ PassedCheck skipped because no linked issues were found for this pull request.
Out of Scope Changes check✅ PassedCheck skipped because no linked issues were found for this pull request.
✏️ Tip: You can configure your own custom pre-merge checks in the settings.
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npm i https://pkg.pr.new/@clerk/chrome-extension@8563

@clerk/clerk-js
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@clerk/express
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@clerk/fastify
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@clerk/localizations
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@clerk/nextjs
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@clerk/react
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@clerk/react-router
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Could you include this fix as well? https://github.com/clerk/javascript/pull/8560/changes#diff-e9357ff8f24a12a7c3f60e8fe95a0553dc35a5e7348ce2b8731ce0557474e3e5R14
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May 15, 2026
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, '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('^' + ".*" + '

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feat(fastify): Add enableHandshake option to plugin - #8563
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Description
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  • pnpm test runs as expected.
  • pnpm build runs as expected.
  •  (If applicable) JSDoc comments have been added or updated for any package exports
  •  (If applicable) Documentation has been updated
Type of change
  •  🐛 Bug fix
  •  🌟 New feature
  •  🔨 Breaking change
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🦋 Changeset detected
Latest commit: b83ba02
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
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Review profile: CHILL
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Run ID: ad96a3c0-5c64-4c99-919a-e5cd7727b9d9
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Reviewing files that changed from the base of the PR and between 5a7225e and b83ba02.
📒 Files selected for processing (4)
  • .changeset/sixty-lobsters-jump.md
  • packages/fastify/src/__tests__/withClerkMiddleware.test.ts
  • packages/fastify/src/types.ts
  • packages/fastify/src/withClerkMiddleware.ts
📝 Walkthrough
Walkthrough
This PR adds an optional enableHandshake configuration option to the Fastify Clerk plugin that controls whether the session verification handshake redirect flow is enabled. The option defaults to true for backward compatibility. When disabled, the middleware skips handshake status checks and redirect logic, allowing first-party backend scenarios to handle those cases directly. The change includes the type definition, conditional middleware logic, a test case validating the disabled behavior, and release documentation.
Estimated code review effort
🎯 2 (Simple) | ⏱️ ~10 minutes
🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check nameStatusExplanation
Title check✅ PassedThe title accurately and concisely describes the main change: adding an enableHandshake option to the Fastify plugin.
Description check✅ PassedThe PR description uses the template format and is related to the changeset, though it lacks detailed implementation notes and has all checklist items unchecked.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check✅ PassedCheck skipped because no linked issues were found for this pull request.
Out of Scope Changes check✅ PassedCheck skipped because no linked issues were found for this pull request.
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Could you include this fix as well? https://github.com/clerk/javascript/pull/8560/changes#diff-e9357ff8f24a12a7c3f60e8fe95a0553dc35a5e7348ce2b8731ce0557474e3e5R14
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, '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" + '

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feat(fastify): Add enableHandshake option to plugin - #8563
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  • pnpm build runs as expected.
  •  (If applicable) JSDoc comments have been added or updated for any package exports
  •  (If applicable) Documentation has been updated
Type of change
  •  🐛 Bug fix
  •  🌟 New feature
  •  🔨 Breaking change
  •  📖 Refactoring / dependency upgrade / documentation
  •  other:
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🦋 Changeset detected
Latest commit: b83ba02
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@clerk/fastifyPatch
Not sure what this means? Click here to learn what changesets are.
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No actionable comments were generated in the recent review. 🎉
ℹ️ Recent review info
⚙️ Run configuration
Configuration used: Repository YAML (base), Organization UI (inherited)
Review profile: CHILL
Plan: Pro
Run ID: ad96a3c0-5c64-4c99-919a-e5cd7727b9d9
📥 Commits
Reviewing files that changed from the base of the PR and between 5a7225e and b83ba02.
📒 Files selected for processing (4)
  • .changeset/sixty-lobsters-jump.md
  • packages/fastify/src/__tests__/withClerkMiddleware.test.ts
  • packages/fastify/src/types.ts
  • packages/fastify/src/withClerkMiddleware.ts
📝 Walkthrough
Walkthrough
This PR adds an optional enableHandshake configuration option to the Fastify Clerk plugin that controls whether the session verification handshake redirect flow is enabled. The option defaults to true for backward compatibility. When disabled, the middleware skips handshake status checks and redirect logic, allowing first-party backend scenarios to handle those cases directly. The change includes the type definition, conditional middleware logic, a test case validating the disabled behavior, and release documentation.
Estimated code review effort
🎯 2 (Simple) | ⏱️ ~10 minutes
🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check nameStatusExplanation
Title check✅ PassedThe title accurately and concisely describes the main change: adding an enableHandshake option to the Fastify plugin.
Description check✅ PassedThe PR description uses the template format and is related to the changeset, though it lacks detailed implementation notes and has all checklist items unchecked.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check✅ PassedCheck skipped because no linked issues were found for this pull request.
Out of Scope Changes check✅ PassedCheck skipped because no linked issues were found for this pull request.
✏️ Tip: You can configure your own custom pre-merge checks in the settings.
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npm i https://pkg.pr.new/@clerk/chrome-extension@8563

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@clerk/nextjs
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@clerk/react
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@clerk/react-router
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@clerk/shared
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Could you include this fix as well? https://github.com/clerk/javascript/pull/8560/changes#diff-e9357ff8f24a12a7c3f60e8fe95a0553dc35a5e7348ce2b8731ce0557474e3e5R14
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May 15, 2026
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, '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('^' + ".*" + '

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feat(fastify): Add enableHandshake option to plugin - #8563
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  • pnpm test runs as expected.
  • pnpm build runs as expected.
  •  (If applicable) JSDoc comments have been added or updated for any package exports
  •  (If applicable) Documentation has been updated
Type of change
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  •  🌟 New feature
  •  🔨 Breaking change
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  •  other:
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🦋 Changeset detected
Latest commit: b83ba02
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@clerk/fastifyPatch
Not sure what this means? Click here to learn what changesets are.
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No actionable comments were generated in the recent review. 🎉
ℹ️ Recent review info
⚙️ Run configuration
Configuration used: Repository YAML (base), Organization UI (inherited)
Review profile: CHILL
Plan: Pro
Run ID: ad96a3c0-5c64-4c99-919a-e5cd7727b9d9
📥 Commits
Reviewing files that changed from the base of the PR and between 5a7225e and b83ba02.
📒 Files selected for processing (4)
  • .changeset/sixty-lobsters-jump.md
  • packages/fastify/src/__tests__/withClerkMiddleware.test.ts
  • packages/fastify/src/types.ts
  • packages/fastify/src/withClerkMiddleware.ts
📝 Walkthrough
Walkthrough
This PR adds an optional enableHandshake configuration option to the Fastify Clerk plugin that controls whether the session verification handshake redirect flow is enabled. The option defaults to true for backward compatibility. When disabled, the middleware skips handshake status checks and redirect logic, allowing first-party backend scenarios to handle those cases directly. The change includes the type definition, conditional middleware logic, a test case validating the disabled behavior, and release documentation.
Estimated code review effort
🎯 2 (Simple) | ⏱️ ~10 minutes
🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check nameStatusExplanation
Title check✅ PassedThe title accurately and concisely describes the main change: adding an enableHandshake option to the Fastify plugin.
Description check✅ PassedThe PR description uses the template format and is related to the changeset, though it lacks detailed implementation notes and has all checklist items unchecked.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check✅ PassedCheck skipped because no linked issues were found for this pull request.
Out of Scope Changes check✅ PassedCheck skipped because no linked issues were found for this pull request.
✏️ Tip: You can configure your own custom pre-merge checks in the settings.
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@clerk/chrome-extension
npm i https://pkg.pr.new/@clerk/chrome-extension@8563

@clerk/clerk-js
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@clerk/dev-cli
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@clerk/expo-passkeys
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@clerk/express
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@clerk/fastify
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@clerk/localizations
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@clerk/nextjs
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@clerk/nuxt
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@clerk/react
npm i https://pkg.pr.new/@clerk/react@8563

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Could you include this fix as well? https://github.com/clerk/javascript/pull/8560/changes#diff-e9357ff8f24a12a7c3f60e8fe95a0553dc35a5e7348ce2b8731ce0557474e3e5R14
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, '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('^' + ".*" + '

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feat(fastify): Add enableHandshake option to plugin - #8563
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Description
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  • pnpm test runs as expected.
  • pnpm build runs as expected.
  •  (If applicable) JSDoc comments have been added or updated for any package exports
  •  (If applicable) Documentation has been updated
Type of change
  •  🐛 Bug fix
  •  🌟 New feature
  •  🔨 Breaking change
  •  📖 Refactoring / dependency upgrade / documentation
  •  other:
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🦋 Changeset detected
Latest commit: b83ba02
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@clerk/fastifyPatch
Not sure what this means? Click here to learn what changesets are.
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No actionable comments were generated in the recent review. 🎉
ℹ️ Recent review info
⚙️ Run configuration
Configuration used: Repository YAML (base), Organization UI (inherited)
Review profile: CHILL
Plan: Pro
Run ID: ad96a3c0-5c64-4c99-919a-e5cd7727b9d9
📥 Commits
Reviewing files that changed from the base of the PR and between 5a7225e and b83ba02.
📒 Files selected for processing (4)
  • .changeset/sixty-lobsters-jump.md
  • packages/fastify/src/__tests__/withClerkMiddleware.test.ts
  • packages/fastify/src/types.ts
  • packages/fastify/src/withClerkMiddleware.ts
📝 Walkthrough
Walkthrough
This PR adds an optional enableHandshake configuration option to the Fastify Clerk plugin that controls whether the session verification handshake redirect flow is enabled. The option defaults to true for backward compatibility. When disabled, the middleware skips handshake status checks and redirect logic, allowing first-party backend scenarios to handle those cases directly. The change includes the type definition, conditional middleware logic, a test case validating the disabled behavior, and release documentation.
Estimated code review effort
🎯 2 (Simple) | ⏱️ ~10 minutes
🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check nameStatusExplanation
Title check✅ PassedThe title accurately and concisely describes the main change: adding an enableHandshake option to the Fastify plugin.
Description check✅ PassedThe PR description uses the template format and is related to the changeset, though it lacks detailed implementation notes and has all checklist items unchecked.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check✅ PassedCheck skipped because no linked issues were found for this pull request.
Out of Scope Changes check✅ PassedCheck skipped because no linked issues were found for this pull request.
✏️ Tip: You can configure your own custom pre-merge checks in the settings.
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@clerk/chrome-extension
npm i https://pkg.pr.new/@clerk/chrome-extension@8563

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@clerk/express
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@clerk/fastify
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commit: b83ba02
@wobsoriano
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@jorgevrgs
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May 15, 2026

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Could you include this fix as well? https://github.com/clerk/javascript/pull/8560/changes#diff-e9357ff8f24a12a7c3f60e8fe95a0553dc35a5e7348ce2b8731ce0557474e3e5R14
@wobsorianowobsoriano
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May 15, 2026
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, '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); }
})();
})();

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feat(fastify): Add enableHandshake option to plugin - #8563
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wobsoriano wants to merge 3 commits into
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fastify-disable-handshake
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feat(fastify): Add enableHandshake option to plugin#8563
wobsoriano wants to merge 3 commits into
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fastify-disable-handshake
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Description
Checklist
  • pnpm test runs as expected.
  • pnpm build runs as expected.
  •  (If applicable) JSDoc comments have been added or updated for any package exports
  •  (If applicable) Documentation has been updated
Type of change
  •  🐛 Bug fix
  •  🌟 New feature
  •  🔨 Breaking change
  •  📖 Refactoring / dependency upgrade / documentation
  •  other:
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🦋 Changeset detected
Latest commit: b83ba02
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@clerk/fastifyPatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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Review Change Stack
No actionable comments were generated in the recent review. 🎉
ℹ️ Recent review info
⚙️ Run configuration
Configuration used: Repository YAML (base), Organization UI (inherited)
Review profile: CHILL
Plan: Pro
Run ID: ad96a3c0-5c64-4c99-919a-e5cd7727b9d9
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Reviewing files that changed from the base of the PR and between 5a7225e and b83ba02.
📒 Files selected for processing (4)
  • .changeset/sixty-lobsters-jump.md
  • packages/fastify/src/__tests__/withClerkMiddleware.test.ts
  • packages/fastify/src/types.ts
  • packages/fastify/src/withClerkMiddleware.ts
📝 Walkthrough
Walkthrough
This PR adds an optional enableHandshake configuration option to the Fastify Clerk plugin that controls whether the session verification handshake redirect flow is enabled. The option defaults to true for backward compatibility. When disabled, the middleware skips handshake status checks and redirect logic, allowing first-party backend scenarios to handle those cases directly. The change includes the type definition, conditional middleware logic, a test case validating the disabled behavior, and release documentation.
Estimated code review effort
🎯 2 (Simple) | ⏱️ ~10 minutes
🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check nameStatusExplanation
Title check✅ PassedThe title accurately and concisely describes the main change: adding an enableHandshake option to the Fastify plugin.
Description check✅ PassedThe PR description uses the template format and is related to the changeset, though it lacks detailed implementation notes and has all checklist items unchecked.
Docstring Coverage✅ PassedNo functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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commit: b83ba02
@wobsoriano
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May 15, 2026

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@jorgevrgs
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Could you include this fix as well? https://github.com/clerk/javascript/pull/8560/changes#diff-e9357ff8f24a12a7c3f60e8fe95a0553dc35a5e7348ce2b8731ce0557474e3e5R14
@wobsorianowobsoriano
mentioned this pull request
May 15, 2026
 Merged

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