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feat(nextjs): Send tunnel route requests with credentials: 'omit' - #25509

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s1gr1d merged 4 commits into
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sig/nextjs-tunnel-credentials-omit
Oct 20, 2026
Merged

s1gr1d merged 4 commits into
developfrom
sig/nextjs-tunnel-credentials-omit

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@s1gr1d

@s1gr1d s1gr1d commented Oct 19, 2026 •

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The tunnel route is same-origin, so the browser transport includes credentials (cookies, HTTP authentication) with each request, and the tunnel route does not need them. With tunnelRoute, @sentry/nextjs now sets credentials: 'omit' on the transport.

Apps with a layer in front that checks credentials (for example Vercel Deployment Protection) can opt back in:

// instrumentation-client.ts
Sentry.init({
  transportOptions: { fetchOptions: { credentials: 'same-origin' } },
});

Fixes JS-3927

@s1gr1d
s1gr1d requested review from a team as code owners October 19, 2026 09:04
@s1gr1d
s1gr1d requested review from chargome, logaretm and mydea and removed request for a team October 19, 2026 09:04
@linear-code

linear-code Bot commented Oct 19, 2026

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JS-3927

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github-actions Bot commented Oct 19, 2026 •

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size-limit report 📦

⚠️ Warning: Base artifact is not the latest one, because the latest workflow run is not done yet. This may lead to incorrect results. Try to re-run all tests to get up to date results.

Path Size % Change Change
@sentry/browser 29.88 kB - -
@sentry/browser - with treeshaking flags 28.02 kB - -
@sentry/browser - with treeshaking flags tracing without tracing 27.92 kB - -
@sentry/browser (incl. Tracing) 52.07 kB - -
@sentry/browser (incl. Tracing + Span Streaming) 52.07 kB - -
@sentry/browser (incl. Tracing, Profiling) 55.02 kB - -
@sentry/browser (incl. Tracing, Replay) 91.82 kB - -
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags 80.68 kB - -
@sentry/browser (incl. Tracing, Replay with Canvas) 96.55 kB - -
@sentry/browser (incl. Tracing, Replay, Feedback) 109.49 kB - -
@sentry/browser (incl. Feedback) 47.4 kB - -
@sentry/browser (incl. sendFeedback) 34.94 kB - -
@sentry/browser (incl. FeedbackAsync) 40.05 kB - -
@sentry/browser (incl. Metrics) 30.9 kB - -
@sentry/browser (incl. Logs) 31.18 kB - -
@sentry/browser (incl. Metrics & Logs) 31.81 kB - -
@sentry/react 31.7 kB - -
@sentry/react (incl. Tracing) 54.39 kB - -
@sentry/vue 38.04 kB - -
@sentry/vue (incl. Tracing) 55.01 kB - -
@sentry/svelte 29.9 kB - -
@sentry/remix (Remix 3 client bundle) 57.08 kB - -
CDN Bundle 31.64 kB - -
CDN Bundle (incl. Tracing) 52.58 kB - -
CDN Bundle (incl. Logs, Metrics) 33.84 kB - -
CDN Bundle (incl. Tracing, Logs, Metrics) 54.52 kB - -
CDN Bundle (incl. Replay, Logs, Metrics) 74.77 kB - -
CDN Bundle (incl. Tracing, Replay) 90.25 kB - -
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) 92.18 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback) 96.4 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) 98.34 kB - -
CDN Bundle - uncompressed 93.18 kB - -
CDN Bundle (incl. Tracing) - uncompressed 156.03 kB - -
CDN Bundle (incl. Logs, Metrics) - uncompressed 99.72 kB - -
CDN Bundle (incl. Tracing, Logs, Metrics) - uncompressed 161.99 kB - -
CDN Bundle (incl. Replay, Logs, Metrics) - uncompressed 229.76 kB - -
CDN Bundle (incl. Tracing, Replay) - uncompressed 276.2 kB - -
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) - uncompressed 282.14 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed 289.9 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) - uncompressed 295.84 kB - -
@sentry/nextjs (client) 56.88 kB +0.08% +43 B 🔺
@sentry/sveltekit (client) 52.45 kB - -
@sentry/core/server 41.17 kB - -
@sentry/core/browser 13.81 kB - -
@sentry/node 155.15 kB +0.01% +9 B 🔺
@sentry/node/import (ESM hook with diagnostics-channel injection) 84.06 kB - -
@sentry/node - without tracing 96.82 kB +0.01% +6 B 🔺
@sentry/node - without channel injection 133.18 kB +0.01% +9 B 🔺
@sentry/aws-serverless 105.03 kB +0.01% +8 B 🔺
@sentry/cloudflare (withSentry) - minified 210.89 kB - -
@sentry/cloudflare (withSentry) 523.17 kB - -
@sentry/nextjs/cloudflare (withSentry) - minified 228.57 kB - -

View base workflow run

Comment thread CHANGELOG.md Outdated
@s1gr1d
s1gr1d enabled auto-merge (squash) October 20, 2026 10:27
…credentials-omit

# Conflicts:
#	CHANGELOG.md
#	dev-packages/e2e-tests/test-applications/nextjs-16-tunnel/tests/tunnel-route.test.ts
#	packages/nextjs/test/utils/tunnelRoute.test.ts
@s1gr1d
s1gr1d merged commit b151d07 into develop Oct 20, 2026
92 checks passed
@s1gr1d
s1gr1d deleted the sig/nextjs-tunnel-credentials-omit branch October 20, 2026 12:59
s1gr1d added a commit that referenced this pull request Oct 20, 2026
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2 participants