feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable - #8198

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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable#8198
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@Chat-JPTeasdaleChat-JPTeasdale commented Mar 28, 2026

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Description

Alternative approach to #8196 — instead of adding cloudflare:workers support to the shared getEnvVariable, this PR fixes the issue at the TanStack Start package level by passing Cloudflare Workers env as context to getEnvVariable(), following the same pattern already used in @clerk/react-router.

Related issue: #8197

Problem

On Cloudflare Workers, @clerk/tanstack-react-start calls getEnvVariable('CLERK_SECRET_KEY')without a context parameter:

// packages/tanstack-react-start/src/server/constants.tsSECRET_KEY: getEnvVariable('CLERK_SECRET_KEY'),// no context!

Compare with @clerk/react-router which correctly passes context:

// packages/react-router/src/server/loadOptions.tsconstsecretKey=getEnvVariable('CLERK_SECRET_KEY',context);// ✅ passes context

Without context, getEnvVariable cannot find env vars on CF Workers because process.env and import.meta.env are not available at runtime.

Solution

  1. cloudflareEnv.ts — New module that dynamically imports cloudflare:workers and caches the env object (same pattern as @clerk/astro's initCloudflareEnv)
  2. clerkMiddleware.ts — Calls initCloudflareWorkerEnv() at the start of the middleware (no-op on non-CF runtimes)
  3. constants.tscommonEnvs() now accepts optional context and passes it to all getEnvVariable() calls
  4. utils/env.tsgetPublicEnvVariables() now accepts optional context

How this differs from #8196

ApproachPR #8196 (shared)This PR (tanstack)
ScopeAll framework packagesTanStack Start only
Changes@clerk/shared@clerk/tanstack-react-start
PatternAuto-import cloudflare:workers in sharedPass context like @clerk/react-router does
RiskLower — additive fallbackLower — follows existing React Router pattern

Both PRs solve the same problem. The Clerk team can choose which approach they prefer, or merge both for defense-in-depth.

Checklist

  • Follows existing @clerk/react-router pattern for CF context passing
  • Safe on non-Cloudflare runtimes (init silently no-ops)
  • No breaking changes (context parameter is optional)

Type of change

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

Summary by CodeRabbit

  • New Features
    • Added support for Cloudflare Workers environment variable resolution in TanStack React Start, enabling proper runtime access to secret keys and configuration values on Cloudflare Workers deployments.

On Cloudflare Workers, process.env and import.meta.env are not available.
This adds cloudflare:workers module env resolution to the TanStack Start
package, following the pattern used in @clerk/react-router where loader
context is passed to getEnvVariable().
- Add cloudflareEnv.ts with initCloudflareWorkerEnv() + getCloudflareWorkerEnv()
- Initialize CF env in clerkMiddleware (no-op on non-CF runtimes)
- Pass CF env context through commonEnvs() → getEnvVariable(name, context)
- Update getPublicEnvVariables to accept optional context
Related: clerk#8197
Alternative approach to PR clerk#8196 (shared-level fix)
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🦋 Changeset detected

Latest commit: 34b89fa

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

This PR includes changesets to release 1 package
NameType
@clerk/tanstack-react-startPatch

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📒 Files selected for processing (5)
  • .changeset/tanstack-cloudflare-env-context.md
  • packages/tanstack-react-start/src/server/clerkMiddleware.ts
  • packages/tanstack-react-start/src/server/cloudflareEnv.ts
  • packages/tanstack-react-start/src/server/constants.ts
  • packages/tanstack-react-start/src/utils/env.ts

📝 Walkthrough

Walkthrough

This PR adds Cloudflare Workers environment variable support to the @clerk/tanstack-react-start package. A new module provides async initialization and synchronous access to Cloudflare Workers env context. The clerk middleware calls this initializer at startup. Environment variable resolution functions throughout the package are updated to accept and propagate a context parameter, enabling Clerk environment variables like CLERK_SECRET_KEY to be resolved through Cloudflare Workers' env context at runtime instead of relying on process.env/import.meta.env.

Possibly related issues

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check nameStatusExplanation
Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title clearly summarizes the main change: passing Cloudflare Workers env context through the TanStack Start package's environment resolution, which is the primary objective of this PR.
Docstring Coverage✅ PassedDocstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.


Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

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Hello 👋

We currently close PRs after 60 days of inactivity. It's been 50 days since the last update here. If we missed this PR, please reply here. Otherwise, we'll close this PR in 10 days.

Thanks for being a part of the Clerk community! 🙏

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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable - #8198

Closed
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clerk:mainfrom
Chat-JPTeasdale:feat/tanstack-cloudflare-env-context
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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable#8198
Chat-JPTeasdale wants to merge 1 commit into
clerk:mainfrom
Chat-JPTeasdale:feat/tanstack-cloudflare-env-context

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@Chat-JPTeasdale

@Chat-JPTeasdaleChat-JPTeasdale commented Mar 28, 2026

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Description

Alternative approach to #8196 — instead of adding cloudflare:workers support to the shared getEnvVariable, this PR fixes the issue at the TanStack Start package level by passing Cloudflare Workers env as context to getEnvVariable(), following the same pattern already used in @clerk/react-router.

Related issue: #8197

Problem

On Cloudflare Workers, @clerk/tanstack-react-start calls getEnvVariable('CLERK_SECRET_KEY')without a context parameter:

// packages/tanstack-react-start/src/server/constants.tsSECRET_KEY: getEnvVariable('CLERK_SECRET_KEY'),// no context!

Compare with @clerk/react-router which correctly passes context:

// packages/react-router/src/server/loadOptions.tsconstsecretKey=getEnvVariable('CLERK_SECRET_KEY',context);// ✅ passes context

Without context, getEnvVariable cannot find env vars on CF Workers because process.env and import.meta.env are not available at runtime.

Solution

  1. cloudflareEnv.ts — New module that dynamically imports cloudflare:workers and caches the env object (same pattern as @clerk/astro's initCloudflareEnv)
  2. clerkMiddleware.ts — Calls initCloudflareWorkerEnv() at the start of the middleware (no-op on non-CF runtimes)
  3. constants.tscommonEnvs() now accepts optional context and passes it to all getEnvVariable() calls
  4. utils/env.tsgetPublicEnvVariables() now accepts optional context

How this differs from #8196

ApproachPR #8196 (shared)This PR (tanstack)
ScopeAll framework packagesTanStack Start only
Changes@clerk/shared@clerk/tanstack-react-start
PatternAuto-import cloudflare:workers in sharedPass context like @clerk/react-router does
RiskLower — additive fallbackLower — follows existing React Router pattern

Both PRs solve the same problem. The Clerk team can choose which approach they prefer, or merge both for defense-in-depth.

Checklist

  • Follows existing @clerk/react-router pattern for CF context passing
  • Safe on non-Cloudflare runtimes (init silently no-ops)
  • No breaking changes (context parameter is optional)

Type of change

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

Summary by CodeRabbit

  • New Features
    • Added support for Cloudflare Workers environment variable resolution in TanStack React Start, enabling proper runtime access to secret keys and configuration values on Cloudflare Workers deployments.

On Cloudflare Workers, process.env and import.meta.env are not available.
This adds cloudflare:workers module env resolution to the TanStack Start
package, following the pattern used in @clerk/react-router where loader
context is passed to getEnvVariable().
- Add cloudflareEnv.ts with initCloudflareWorkerEnv() + getCloudflareWorkerEnv()
- Initialize CF env in clerkMiddleware (no-op on non-CF runtimes)
- Pass CF env context through commonEnvs() → getEnvVariable(name, context)
- Update getPublicEnvVariables to accept optional context
Related: clerk#8197
Alternative approach to PR clerk#8196 (shared-level fix)
@changeset-bot

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🦋 Changeset detected

Latest commit: 34b89fa

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

This PR includes changesets to release 1 package
NameType
@clerk/tanstack-react-startPatch

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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@ChatJPTeasdale is attempting to deploy a commit to the Clerk Production Team on Vercel.

A member of the Team first needs to authorize it.

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info
⚙️ Run configuration

Configuration used: Repository YAML (base), Organization UI (inherited)

Review profile: ASSERTIVE

Plan: Pro

Run ID: 99e4983d-ee3e-41d8-aa7d-058c357c10fd

📥 Commits

Reviewing files that changed from the base of the PR and between abbc6c4 and 34b89fa.

📒 Files selected for processing (5)
  • .changeset/tanstack-cloudflare-env-context.md
  • packages/tanstack-react-start/src/server/clerkMiddleware.ts
  • packages/tanstack-react-start/src/server/cloudflareEnv.ts
  • packages/tanstack-react-start/src/server/constants.ts
  • packages/tanstack-react-start/src/utils/env.ts

📝 Walkthrough

Walkthrough

This PR adds Cloudflare Workers environment variable support to the @clerk/tanstack-react-start package. A new module provides async initialization and synchronous access to Cloudflare Workers env context. The clerk middleware calls this initializer at startup. Environment variable resolution functions throughout the package are updated to accept and propagate a context parameter, enabling Clerk environment variables like CLERK_SECRET_KEY to be resolved through Cloudflare Workers' env context at runtime instead of relying on process.env/import.meta.env.

Possibly related issues

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check nameStatusExplanation
Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title clearly summarizes the main change: passing Cloudflare Workers env context through the TanStack Start package's environment resolution, which is the primary objective of this PR.
Docstring Coverage✅ PassedDocstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.


Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

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Hello 👋

We currently close PRs after 60 days of inactivity. It's been 50 days since the last update here. If we missed this PR, please reply here. Otherwise, we'll close this PR in 10 days.

Thanks for being a part of the Clerk community! 🙏

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@Chat-JPTeasdale@Ephem@ChatJPTeasdale
, '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('^' + ".*" + '
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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable - #8198

Closed
Chat-JPTeasdale wants to merge 1 commit into
clerk:mainfrom
Chat-JPTeasdale:feat/tanstack-cloudflare-env-context
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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable#8198
Chat-JPTeasdale wants to merge 1 commit into
clerk:mainfrom
Chat-JPTeasdale:feat/tanstack-cloudflare-env-context

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@Chat-JPTeasdale

@Chat-JPTeasdaleChat-JPTeasdale commented Mar 28, 2026

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Description

Alternative approach to #8196 — instead of adding cloudflare:workers support to the shared getEnvVariable, this PR fixes the issue at the TanStack Start package level by passing Cloudflare Workers env as context to getEnvVariable(), following the same pattern already used in @clerk/react-router.

Related issue: #8197

Problem

On Cloudflare Workers, @clerk/tanstack-react-start calls getEnvVariable('CLERK_SECRET_KEY')without a context parameter:

// packages/tanstack-react-start/src/server/constants.tsSECRET_KEY: getEnvVariable('CLERK_SECRET_KEY'),// no context!

Compare with @clerk/react-router which correctly passes context:

// packages/react-router/src/server/loadOptions.tsconstsecretKey=getEnvVariable('CLERK_SECRET_KEY',context);// ✅ passes context

Without context, getEnvVariable cannot find env vars on CF Workers because process.env and import.meta.env are not available at runtime.

Solution

  1. cloudflareEnv.ts — New module that dynamically imports cloudflare:workers and caches the env object (same pattern as @clerk/astro's initCloudflareEnv)
  2. clerkMiddleware.ts — Calls initCloudflareWorkerEnv() at the start of the middleware (no-op on non-CF runtimes)
  3. constants.tscommonEnvs() now accepts optional context and passes it to all getEnvVariable() calls
  4. utils/env.tsgetPublicEnvVariables() now accepts optional context

How this differs from #8196

ApproachPR #8196 (shared)This PR (tanstack)
ScopeAll framework packagesTanStack Start only
Changes@clerk/shared@clerk/tanstack-react-start
PatternAuto-import cloudflare:workers in sharedPass context like @clerk/react-router does
RiskLower — additive fallbackLower — follows existing React Router pattern

Both PRs solve the same problem. The Clerk team can choose which approach they prefer, or merge both for defense-in-depth.

Checklist

  • Follows existing @clerk/react-router pattern for CF context passing
  • Safe on non-Cloudflare runtimes (init silently no-ops)
  • No breaking changes (context parameter is optional)

Type of change

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

Summary by CodeRabbit

  • New Features
    • Added support for Cloudflare Workers environment variable resolution in TanStack React Start, enabling proper runtime access to secret keys and configuration values on Cloudflare Workers deployments.

On Cloudflare Workers, process.env and import.meta.env are not available.
This adds cloudflare:workers module env resolution to the TanStack Start
package, following the pattern used in @clerk/react-router where loader
context is passed to getEnvVariable().
- Add cloudflareEnv.ts with initCloudflareWorkerEnv() + getCloudflareWorkerEnv()
- Initialize CF env in clerkMiddleware (no-op on non-CF runtimes)
- Pass CF env context through commonEnvs() → getEnvVariable(name, context)
- Update getPublicEnvVariables to accept optional context
Related: clerk#8197
Alternative approach to PR clerk#8196 (shared-level fix)
@changeset-bot

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🦋 Changeset detected

Latest commit: 34b89fa

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

This PR includes changesets to release 1 package
NameType
@clerk/tanstack-react-startPatch

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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vercelBot commented Mar 28, 2026

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@ChatJPTeasdale is attempting to deploy a commit to the Clerk Production Team on Vercel.

A member of the Team first needs to authorize it.

@coderabbitai

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info
⚙️ Run configuration

Configuration used: Repository YAML (base), Organization UI (inherited)

Review profile: ASSERTIVE

Plan: Pro

Run ID: 99e4983d-ee3e-41d8-aa7d-058c357c10fd

📥 Commits

Reviewing files that changed from the base of the PR and between abbc6c4 and 34b89fa.

📒 Files selected for processing (5)
  • .changeset/tanstack-cloudflare-env-context.md
  • packages/tanstack-react-start/src/server/clerkMiddleware.ts
  • packages/tanstack-react-start/src/server/cloudflareEnv.ts
  • packages/tanstack-react-start/src/server/constants.ts
  • packages/tanstack-react-start/src/utils/env.ts

📝 Walkthrough

Walkthrough

This PR adds Cloudflare Workers environment variable support to the @clerk/tanstack-react-start package. A new module provides async initialization and synchronous access to Cloudflare Workers env context. The clerk middleware calls this initializer at startup. Environment variable resolution functions throughout the package are updated to accept and propagate a context parameter, enabling Clerk environment variables like CLERK_SECRET_KEY to be resolved through Cloudflare Workers' env context at runtime instead of relying on process.env/import.meta.env.

Possibly related issues

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check nameStatusExplanation
Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title clearly summarizes the main change: passing Cloudflare Workers env context through the TanStack Start package's environment resolution, which is the primary objective of this PR.
Docstring Coverage✅ PassedDocstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.


Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

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Hello 👋

We currently close PRs after 60 days of inactivity. It's been 50 days since the last update here. If we missed this PR, please reply here. Otherwise, we'll close this PR in 10 days.

Thanks for being a part of the Clerk community! 🙏

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@Chat-JPTeasdale@Ephem@ChatJPTeasdale
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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable - #8198

Closed
Chat-JPTeasdale wants to merge 1 commit into
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Chat-JPTeasdale:feat/tanstack-cloudflare-env-context
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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable#8198
Chat-JPTeasdale wants to merge 1 commit into
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Chat-JPTeasdale:feat/tanstack-cloudflare-env-context

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@Chat-JPTeasdaleChat-JPTeasdale commented Mar 28, 2026

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Description

Alternative approach to #8196 — instead of adding cloudflare:workers support to the shared getEnvVariable, this PR fixes the issue at the TanStack Start package level by passing Cloudflare Workers env as context to getEnvVariable(), following the same pattern already used in @clerk/react-router.

Related issue: #8197

Problem

On Cloudflare Workers, @clerk/tanstack-react-start calls getEnvVariable('CLERK_SECRET_KEY')without a context parameter:

// packages/tanstack-react-start/src/server/constants.tsSECRET_KEY: getEnvVariable('CLERK_SECRET_KEY'),// no context!

Compare with @clerk/react-router which correctly passes context:

// packages/react-router/src/server/loadOptions.tsconstsecretKey=getEnvVariable('CLERK_SECRET_KEY',context);// ✅ passes context

Without context, getEnvVariable cannot find env vars on CF Workers because process.env and import.meta.env are not available at runtime.

Solution

  1. cloudflareEnv.ts — New module that dynamically imports cloudflare:workers and caches the env object (same pattern as @clerk/astro's initCloudflareEnv)
  2. clerkMiddleware.ts — Calls initCloudflareWorkerEnv() at the start of the middleware (no-op on non-CF runtimes)
  3. constants.tscommonEnvs() now accepts optional context and passes it to all getEnvVariable() calls
  4. utils/env.tsgetPublicEnvVariables() now accepts optional context

How this differs from #8196

ApproachPR #8196 (shared)This PR (tanstack)
ScopeAll framework packagesTanStack Start only
Changes@clerk/shared@clerk/tanstack-react-start
PatternAuto-import cloudflare:workers in sharedPass context like @clerk/react-router does
RiskLower — additive fallbackLower — follows existing React Router pattern

Both PRs solve the same problem. The Clerk team can choose which approach they prefer, or merge both for defense-in-depth.

Checklist

  • Follows existing @clerk/react-router pattern for CF context passing
  • Safe on non-Cloudflare runtimes (init silently no-ops)
  • No breaking changes (context parameter is optional)

Type of change

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

Summary by CodeRabbit

  • New Features
    • Added support for Cloudflare Workers environment variable resolution in TanStack React Start, enabling proper runtime access to secret keys and configuration values on Cloudflare Workers deployments.

On Cloudflare Workers, process.env and import.meta.env are not available.
This adds cloudflare:workers module env resolution to the TanStack Start
package, following the pattern used in @clerk/react-router where loader
context is passed to getEnvVariable().
- Add cloudflareEnv.ts with initCloudflareWorkerEnv() + getCloudflareWorkerEnv()
- Initialize CF env in clerkMiddleware (no-op on non-CF runtimes)
- Pass CF env context through commonEnvs() → getEnvVariable(name, context)
- Update getPublicEnvVariables to accept optional context
Related: clerk#8197
Alternative approach to PR clerk#8196 (shared-level fix)
@changeset-bot

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  • .changeset/tanstack-cloudflare-env-context.md
  • packages/tanstack-react-start/src/server/clerkMiddleware.ts
  • packages/tanstack-react-start/src/server/cloudflareEnv.ts
  • packages/tanstack-react-start/src/server/constants.ts
  • packages/tanstack-react-start/src/utils/env.ts

📝 Walkthrough

Walkthrough

This PR adds Cloudflare Workers environment variable support to the @clerk/tanstack-react-start package. A new module provides async initialization and synchronous access to Cloudflare Workers env context. The clerk middleware calls this initializer at startup. Environment variable resolution functions throughout the package are updated to accept and propagate a context parameter, enabling Clerk environment variables like CLERK_SECRET_KEY to be resolved through Cloudflare Workers' env context at runtime instead of relying on process.env/import.meta.env.

Possibly related issues

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check nameStatusExplanation
Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title clearly summarizes the main change: passing Cloudflare Workers env context through the TanStack Start package's environment resolution, which is the primary objective of this PR.
Docstring Coverage✅ PassedDocstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable - #8198

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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable#8198
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@Chat-JPTeasdaleChat-JPTeasdale commented Mar 28, 2026

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Description

Alternative approach to #8196 — instead of adding cloudflare:workers support to the shared getEnvVariable, this PR fixes the issue at the TanStack Start package level by passing Cloudflare Workers env as context to getEnvVariable(), following the same pattern already used in @clerk/react-router.

Related issue: #8197

Problem

On Cloudflare Workers, @clerk/tanstack-react-start calls getEnvVariable('CLERK_SECRET_KEY')without a context parameter:

// packages/tanstack-react-start/src/server/constants.tsSECRET_KEY: getEnvVariable('CLERK_SECRET_KEY'),// no context!

Compare with @clerk/react-router which correctly passes context:

// packages/react-router/src/server/loadOptions.tsconstsecretKey=getEnvVariable('CLERK_SECRET_KEY',context);// ✅ passes context

Without context, getEnvVariable cannot find env vars on CF Workers because process.env and import.meta.env are not available at runtime.

Solution

  1. cloudflareEnv.ts — New module that dynamically imports cloudflare:workers and caches the env object (same pattern as @clerk/astro's initCloudflareEnv)
  2. clerkMiddleware.ts — Calls initCloudflareWorkerEnv() at the start of the middleware (no-op on non-CF runtimes)
  3. constants.tscommonEnvs() now accepts optional context and passes it to all getEnvVariable() calls
  4. utils/env.tsgetPublicEnvVariables() now accepts optional context

How this differs from #8196

ApproachPR #8196 (shared)This PR (tanstack)
ScopeAll framework packagesTanStack Start only
Changes@clerk/shared@clerk/tanstack-react-start
PatternAuto-import cloudflare:workers in sharedPass context like @clerk/react-router does
RiskLower — additive fallbackLower — follows existing React Router pattern

Both PRs solve the same problem. The Clerk team can choose which approach they prefer, or merge both for defense-in-depth.

Checklist

  • Follows existing @clerk/react-router pattern for CF context passing
  • Safe on non-Cloudflare runtimes (init silently no-ops)
  • No breaking changes (context parameter is optional)

Type of change

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

Summary by CodeRabbit

  • New Features
    • Added support for Cloudflare Workers environment variable resolution in TanStack React Start, enabling proper runtime access to secret keys and configuration values on Cloudflare Workers deployments.

On Cloudflare Workers, process.env and import.meta.env are not available.
This adds cloudflare:workers module env resolution to the TanStack Start
package, following the pattern used in @clerk/react-router where loader
context is passed to getEnvVariable().
- Add cloudflareEnv.ts with initCloudflareWorkerEnv() + getCloudflareWorkerEnv()
- Initialize CF env in clerkMiddleware (no-op on non-CF runtimes)
- Pass CF env context through commonEnvs() → getEnvVariable(name, context)
- Update getPublicEnvVariables to accept optional context
Related: clerk#8197
Alternative approach to PR clerk#8196 (shared-level fix)
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🦋 Changeset detected

Latest commit: 34b89fa

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

This PR includes changesets to release 1 package
NameType
@clerk/tanstack-react-startPatch

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Click here if you're a maintainer who wants to add another changeset to this PR

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@ChatJPTeasdale is attempting to deploy a commit to the Clerk Production Team on Vercel.

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info
⚙️ Run configuration

Configuration used: Repository YAML (base), Organization UI (inherited)

Review profile: ASSERTIVE

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Run ID: 99e4983d-ee3e-41d8-aa7d-058c357c10fd

📥 Commits

Reviewing files that changed from the base of the PR and between abbc6c4 and 34b89fa.

📒 Files selected for processing (5)
  • .changeset/tanstack-cloudflare-env-context.md
  • packages/tanstack-react-start/src/server/clerkMiddleware.ts
  • packages/tanstack-react-start/src/server/cloudflareEnv.ts
  • packages/tanstack-react-start/src/server/constants.ts
  • packages/tanstack-react-start/src/utils/env.ts

📝 Walkthrough

Walkthrough

This PR adds Cloudflare Workers environment variable support to the @clerk/tanstack-react-start package. A new module provides async initialization and synchronous access to Cloudflare Workers env context. The clerk middleware calls this initializer at startup. Environment variable resolution functions throughout the package are updated to accept and propagate a context parameter, enabling Clerk environment variables like CLERK_SECRET_KEY to be resolved through Cloudflare Workers' env context at runtime instead of relying on process.env/import.meta.env.

Possibly related issues

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check nameStatusExplanation
Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title clearly summarizes the main change: passing Cloudflare Workers env context through the TanStack Start package's environment resolution, which is the primary objective of this PR.
Docstring Coverage✅ PassedDocstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.


Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

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Hello 👋

We currently close PRs after 60 days of inactivity. It's been 50 days since the last update here. If we missed this PR, please reply here. Otherwise, we'll close this PR in 10 days.

Thanks for being a part of the Clerk community! 🙏

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@Chat-JPTeasdale@Ephem@ChatJPTeasdale
, '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('^' + ".*" + '
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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable - #8198

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Chat-JPTeasdale:feat/tanstack-cloudflare-env-context
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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable#8198
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Chat-JPTeasdale:feat/tanstack-cloudflare-env-context

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@Chat-JPTeasdaleChat-JPTeasdale commented Mar 28, 2026

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Description

Alternative approach to #8196 — instead of adding cloudflare:workers support to the shared getEnvVariable, this PR fixes the issue at the TanStack Start package level by passing Cloudflare Workers env as context to getEnvVariable(), following the same pattern already used in @clerk/react-router.

Related issue: #8197

Problem

On Cloudflare Workers, @clerk/tanstack-react-start calls getEnvVariable('CLERK_SECRET_KEY')without a context parameter:

// packages/tanstack-react-start/src/server/constants.tsSECRET_KEY: getEnvVariable('CLERK_SECRET_KEY'),// no context!

Compare with @clerk/react-router which correctly passes context:

// packages/react-router/src/server/loadOptions.tsconstsecretKey=getEnvVariable('CLERK_SECRET_KEY',context);// ✅ passes context

Without context, getEnvVariable cannot find env vars on CF Workers because process.env and import.meta.env are not available at runtime.

Solution

  1. cloudflareEnv.ts — New module that dynamically imports cloudflare:workers and caches the env object (same pattern as @clerk/astro's initCloudflareEnv)
  2. clerkMiddleware.ts — Calls initCloudflareWorkerEnv() at the start of the middleware (no-op on non-CF runtimes)
  3. constants.tscommonEnvs() now accepts optional context and passes it to all getEnvVariable() calls
  4. utils/env.tsgetPublicEnvVariables() now accepts optional context

How this differs from #8196

ApproachPR #8196 (shared)This PR (tanstack)
ScopeAll framework packagesTanStack Start only
Changes@clerk/shared@clerk/tanstack-react-start
PatternAuto-import cloudflare:workers in sharedPass context like @clerk/react-router does
RiskLower — additive fallbackLower — follows existing React Router pattern

Both PRs solve the same problem. The Clerk team can choose which approach they prefer, or merge both for defense-in-depth.

Checklist

  • Follows existing @clerk/react-router pattern for CF context passing
  • Safe on non-Cloudflare runtimes (init silently no-ops)
  • No breaking changes (context parameter is optional)

Type of change

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

Summary by CodeRabbit

  • New Features
    • Added support for Cloudflare Workers environment variable resolution in TanStack React Start, enabling proper runtime access to secret keys and configuration values on Cloudflare Workers deployments.

On Cloudflare Workers, process.env and import.meta.env are not available.
This adds cloudflare:workers module env resolution to the TanStack Start
package, following the pattern used in @clerk/react-router where loader
context is passed to getEnvVariable().
- Add cloudflareEnv.ts with initCloudflareWorkerEnv() + getCloudflareWorkerEnv()
- Initialize CF env in clerkMiddleware (no-op on non-CF runtimes)
- Pass CF env context through commonEnvs() → getEnvVariable(name, context)
- Update getPublicEnvVariables to accept optional context
Related: clerk#8197
Alternative approach to PR clerk#8196 (shared-level fix)
@changeset-bot

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🦋 Changeset detected

Latest commit: 34b89fa

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

This PR includes changesets to release 1 package
NameType
@clerk/tanstack-react-startPatch

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

@vercel

vercelBot commented Mar 28, 2026

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@ChatJPTeasdale is attempting to deploy a commit to the Clerk Production Team on Vercel.

A member of the Team first needs to authorize it.

@coderabbitai

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info
⚙️ Run configuration

Configuration used: Repository YAML (base), Organization UI (inherited)

Review profile: ASSERTIVE

Plan: Pro

Run ID: 99e4983d-ee3e-41d8-aa7d-058c357c10fd

📥 Commits

Reviewing files that changed from the base of the PR and between abbc6c4 and 34b89fa.

📒 Files selected for processing (5)
  • .changeset/tanstack-cloudflare-env-context.md
  • packages/tanstack-react-start/src/server/clerkMiddleware.ts
  • packages/tanstack-react-start/src/server/cloudflareEnv.ts
  • packages/tanstack-react-start/src/server/constants.ts
  • packages/tanstack-react-start/src/utils/env.ts

📝 Walkthrough

Walkthrough

This PR adds Cloudflare Workers environment variable support to the @clerk/tanstack-react-start package. A new module provides async initialization and synchronous access to Cloudflare Workers env context. The clerk middleware calls this initializer at startup. Environment variable resolution functions throughout the package are updated to accept and propagate a context parameter, enabling Clerk environment variables like CLERK_SECRET_KEY to be resolved through Cloudflare Workers' env context at runtime instead of relying on process.env/import.meta.env.

Possibly related issues

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check nameStatusExplanation
Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title clearly summarizes the main change: passing Cloudflare Workers env context through the TanStack Start package's environment resolution, which is the primary objective of this PR.
Docstring Coverage✅ PassedDocstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.


Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

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Hello 👋

We currently close PRs after 60 days of inactivity. It's been 50 days since the last update here. If we missed this PR, please reply here. Otherwise, we'll close this PR in 10 days.

Thanks for being a part of the Clerk community! 🙏

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@Chat-JPTeasdale@Ephem@ChatJPTeasdale
, '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('^' + ".*" + '
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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable - #8198

Closed
Chat-JPTeasdale wants to merge 1 commit into
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Chat-JPTeasdale:feat/tanstack-cloudflare-env-context
Closed

feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable#8198
Chat-JPTeasdale wants to merge 1 commit into
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Chat-JPTeasdale:feat/tanstack-cloudflare-env-context

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@Chat-JPTeasdale

@Chat-JPTeasdaleChat-JPTeasdale commented Mar 28, 2026

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Description

Alternative approach to #8196 — instead of adding cloudflare:workers support to the shared getEnvVariable, this PR fixes the issue at the TanStack Start package level by passing Cloudflare Workers env as context to getEnvVariable(), following the same pattern already used in @clerk/react-router.

Related issue: #8197

Problem

On Cloudflare Workers, @clerk/tanstack-react-start calls getEnvVariable('CLERK_SECRET_KEY')without a context parameter:

// packages/tanstack-react-start/src/server/constants.tsSECRET_KEY: getEnvVariable('CLERK_SECRET_KEY'),// no context!

Compare with @clerk/react-router which correctly passes context:

// packages/react-router/src/server/loadOptions.tsconstsecretKey=getEnvVariable('CLERK_SECRET_KEY',context);// ✅ passes context

Without context, getEnvVariable cannot find env vars on CF Workers because process.env and import.meta.env are not available at runtime.

Solution

  1. cloudflareEnv.ts — New module that dynamically imports cloudflare:workers and caches the env object (same pattern as @clerk/astro's initCloudflareEnv)
  2. clerkMiddleware.ts — Calls initCloudflareWorkerEnv() at the start of the middleware (no-op on non-CF runtimes)
  3. constants.tscommonEnvs() now accepts optional context and passes it to all getEnvVariable() calls
  4. utils/env.tsgetPublicEnvVariables() now accepts optional context

How this differs from #8196

ApproachPR #8196 (shared)This PR (tanstack)
ScopeAll framework packagesTanStack Start only
Changes@clerk/shared@clerk/tanstack-react-start
PatternAuto-import cloudflare:workers in sharedPass context like @clerk/react-router does
RiskLower — additive fallbackLower — follows existing React Router pattern

Both PRs solve the same problem. The Clerk team can choose which approach they prefer, or merge both for defense-in-depth.

Checklist

  • Follows existing @clerk/react-router pattern for CF context passing
  • Safe on non-Cloudflare runtimes (init silently no-ops)
  • No breaking changes (context parameter is optional)

Type of change

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

Summary by CodeRabbit

  • New Features
    • Added support for Cloudflare Workers environment variable resolution in TanStack React Start, enabling proper runtime access to secret keys and configuration values on Cloudflare Workers deployments.

On Cloudflare Workers, process.env and import.meta.env are not available.
This adds cloudflare:workers module env resolution to the TanStack Start
package, following the pattern used in @clerk/react-router where loader
context is passed to getEnvVariable().
- Add cloudflareEnv.ts with initCloudflareWorkerEnv() + getCloudflareWorkerEnv()
- Initialize CF env in clerkMiddleware (no-op on non-CF runtimes)
- Pass CF env context through commonEnvs() → getEnvVariable(name, context)
- Update getPublicEnvVariables to accept optional context
Related: clerk#8197
Alternative approach to PR clerk#8196 (shared-level fix)
@changeset-bot

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🦋 Changeset detected

Latest commit: 34b89fa

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

This PR includes changesets to release 1 package
NameType
@clerk/tanstack-react-startPatch

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

@vercel

vercelBot commented Mar 28, 2026

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@ChatJPTeasdale is attempting to deploy a commit to the Clerk Production Team on Vercel.

A member of the Team first needs to authorize it.

@coderabbitai

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info
⚙️ Run configuration

Configuration used: Repository YAML (base), Organization UI (inherited)

Review profile: ASSERTIVE

Plan: Pro

Run ID: 99e4983d-ee3e-41d8-aa7d-058c357c10fd

📥 Commits

Reviewing files that changed from the base of the PR and between abbc6c4 and 34b89fa.

📒 Files selected for processing (5)
  • .changeset/tanstack-cloudflare-env-context.md
  • packages/tanstack-react-start/src/server/clerkMiddleware.ts
  • packages/tanstack-react-start/src/server/cloudflareEnv.ts
  • packages/tanstack-react-start/src/server/constants.ts
  • packages/tanstack-react-start/src/utils/env.ts

📝 Walkthrough

Walkthrough

This PR adds Cloudflare Workers environment variable support to the @clerk/tanstack-react-start package. A new module provides async initialization and synchronous access to Cloudflare Workers env context. The clerk middleware calls this initializer at startup. Environment variable resolution functions throughout the package are updated to accept and propagate a context parameter, enabling Clerk environment variables like CLERK_SECRET_KEY to be resolved through Cloudflare Workers' env context at runtime instead of relying on process.env/import.meta.env.

Possibly related issues

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check nameStatusExplanation
Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title clearly summarizes the main change: passing Cloudflare Workers env context through the TanStack Start package's environment resolution, which is the primary objective of this PR.
Docstring Coverage✅ PassedDocstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.


Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

Comment @coderabbitai help to get the list of available commands and usage tips.

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Hello 👋

We currently close PRs after 60 days of inactivity. It's been 50 days since the last update here. If we missed this PR, please reply here. Otherwise, we'll close this PR in 10 days.

Thanks for being a part of the Clerk community! 🙏

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Development

Successfully merging this pull request may close these issues.

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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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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable - #8198

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Chat-JPTeasdale:feat/tanstack-cloudflare-env-context
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feat(tanstack): Pass Cloudflare Workers env context to getEnvVariable#8198
Chat-JPTeasdale wants to merge 1 commit into
clerk:mainfrom
Chat-JPTeasdale:feat/tanstack-cloudflare-env-context

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@Chat-JPTeasdale

@Chat-JPTeasdaleChat-JPTeasdale commented Mar 28, 2026

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Description

Alternative approach to #8196 — instead of adding cloudflare:workers support to the shared getEnvVariable, this PR fixes the issue at the TanStack Start package level by passing Cloudflare Workers env as context to getEnvVariable(), following the same pattern already used in @clerk/react-router.

Related issue: #8197

Problem

On Cloudflare Workers, @clerk/tanstack-react-start calls getEnvVariable('CLERK_SECRET_KEY')without a context parameter:

// packages/tanstack-react-start/src/server/constants.tsSECRET_KEY: getEnvVariable('CLERK_SECRET_KEY'),// no context!

Compare with @clerk/react-router which correctly passes context:

// packages/react-router/src/server/loadOptions.tsconstsecretKey=getEnvVariable('CLERK_SECRET_KEY',context);// ✅ passes context

Without context, getEnvVariable cannot find env vars on CF Workers because process.env and import.meta.env are not available at runtime.

Solution

  1. cloudflareEnv.ts — New module that dynamically imports cloudflare:workers and caches the env object (same pattern as @clerk/astro's initCloudflareEnv)
  2. clerkMiddleware.ts — Calls initCloudflareWorkerEnv() at the start of the middleware (no-op on non-CF runtimes)
  3. constants.tscommonEnvs() now accepts optional context and passes it to all getEnvVariable() calls
  4. utils/env.tsgetPublicEnvVariables() now accepts optional context

How this differs from #8196

ApproachPR #8196 (shared)This PR (tanstack)
ScopeAll framework packagesTanStack Start only
Changes@clerk/shared@clerk/tanstack-react-start
PatternAuto-import cloudflare:workers in sharedPass context like @clerk/react-router does
RiskLower — additive fallbackLower — follows existing React Router pattern

Both PRs solve the same problem. The Clerk team can choose which approach they prefer, or merge both for defense-in-depth.

Checklist

  • Follows existing @clerk/react-router pattern for CF context passing
  • Safe on non-Cloudflare runtimes (init silently no-ops)
  • No breaking changes (context parameter is optional)

Type of change

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

Summary by CodeRabbit

  • New Features
    • Added support for Cloudflare Workers environment variable resolution in TanStack React Start, enabling proper runtime access to secret keys and configuration values on Cloudflare Workers deployments.

On Cloudflare Workers, process.env and import.meta.env are not available.
This adds cloudflare:workers module env resolution to the TanStack Start
package, following the pattern used in @clerk/react-router where loader
context is passed to getEnvVariable().
- Add cloudflareEnv.ts with initCloudflareWorkerEnv() + getCloudflareWorkerEnv()
- Initialize CF env in clerkMiddleware (no-op on non-CF runtimes)
- Pass CF env context through commonEnvs() → getEnvVariable(name, context)
- Update getPublicEnvVariables to accept optional context
Related: clerk#8197
Alternative approach to PR clerk#8196 (shared-level fix)
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🦋 Changeset detected

Latest commit: 34b89fa

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

This PR includes changesets to release 1 package
NameType
@clerk/tanstack-react-startPatch

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vercelBot commented Mar 28, 2026

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@ChatJPTeasdale is attempting to deploy a commit to the Clerk Production Team on Vercel.

A member of the Team first needs to authorize it.

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info
⚙️ Run configuration

Configuration used: Repository YAML (base), Organization UI (inherited)

Review profile: ASSERTIVE

Plan: Pro

Run ID: 99e4983d-ee3e-41d8-aa7d-058c357c10fd

📥 Commits

Reviewing files that changed from the base of the PR and between abbc6c4 and 34b89fa.

📒 Files selected for processing (5)
  • .changeset/tanstack-cloudflare-env-context.md
  • packages/tanstack-react-start/src/server/clerkMiddleware.ts
  • packages/tanstack-react-start/src/server/cloudflareEnv.ts
  • packages/tanstack-react-start/src/server/constants.ts
  • packages/tanstack-react-start/src/utils/env.ts

📝 Walkthrough

Walkthrough

This PR adds Cloudflare Workers environment variable support to the @clerk/tanstack-react-start package. A new module provides async initialization and synchronous access to Cloudflare Workers env context. The clerk middleware calls this initializer at startup. Environment variable resolution functions throughout the package are updated to accept and propagate a context parameter, enabling Clerk environment variables like CLERK_SECRET_KEY to be resolved through Cloudflare Workers' env context at runtime instead of relying on process.env/import.meta.env.

Possibly related issues

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
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Description Check✅ PassedCheck skipped - CodeRabbit’s high-level summary is enabled.
Title check✅ PassedThe title clearly summarizes the main change: passing Cloudflare Workers env context through the TanStack Start package's environment resolution, which is the primary objective of this PR.
Docstring Coverage✅ PassedDocstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

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Hello 👋

We currently close PRs after 60 days of inactivity. It's been 50 days since the last update here. If we missed this PR, please reply here. Otherwise, we'll close this PR in 10 days.

Thanks for being a part of the Clerk community! 🙏

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3 participants

@Chat-JPTeasdale@Ephem@ChatJPTeasdale