feat(astro): Serve the managed tunnel from the Sentry middleware by logaretm · Pull Request #25419 · getsentry/sentry-javascript

logaretm · 2026-10-15T16:04:01Z

This PR adds the tunnel wiring to the astro SDK. We already had a global middleware active, so it works by adding logic to check if the incoming request is a tunnel request and if it is, then it will be handled.

This also respects the decision made earlier to follow the base path configured by the user, which comes from Astro's base config.

The astro-7 and astro-6-cf-workers tunnel variants cover node and Cloudflare.

For reviewers: if you need an overview of what this is, refer to #25199.

closes #25463

github-actions · 2026-10-15T16:11:19Z

size-limit report 📦

Compared: d6a317b (PR test merge using develop at b68afeb)

Against: ca4fc32 (develop) · base run #62950

⚠️ Baseline mismatch: 93 develop commit(s) in the PR build are missing from the baseline. Their size changes also affect this comparison. Compare commits. Re-run once develop's baseline build for b68afeb finishes.

Path	Size	% Change	Change
@sentry/browser	30.56 kB	+2.18%	+651 B 🔺
@sentry/browser - with treeshaking flags	28.54 kB	+1.76%	+491 B 🔺
@sentry/browser - with treeshaking flags tracing without tracing	28.42 kB	+1.69%	+470 B 🔺
@sentry/browser (incl. Tracing)	52.8 kB	+1.35%	+702 B 🔺
@sentry/browser (incl. Tracing + Span Streaming)	52.8 kB	+1.35%	+699 B 🔺
@sentry/browser (incl. Tracing, Profiling)	55.77 kB	+1.31%	+720 B 🔺
@sentry/browser (incl. Tracing, Replay)	92.47 kB	+0.68%	+621 B 🔺
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags	81.21 kB	+0.61%	+492 B 🔺
@sentry/browser (incl. Tracing, Replay with Canvas)	97.21 kB	+0.66%	+633 B 🔺
@sentry/browser (incl. Tracing, Replay, Feedback)	110.2 kB	+0.63%	+687 B 🔺
@sentry/browser (incl. Feedback)	48.12 kB	+1.49%	+703 B 🔺
@sentry/browser (incl. sendFeedback)	35.63 kB	+1.9%	+664 B 🔺
@sentry/browser (incl. FeedbackAsync)	40.76 kB	+1.71%	+684 B 🔺
@sentry/browser (incl. Metrics)	31.57 kB	+2.05%	+634 B 🔺
@sentry/browser (incl. Logs)	31.84 kB	+2.02%	+629 B 🔺
@sentry/browser (incl. Metrics & Logs)	32.52 kB	+2.12%	+673 B 🔺
@sentry/react	32.37 kB	+1.99%	+630 B 🔺
@sentry/react (incl. Tracing)	55.05 kB	+1.17%	+635 B 🔺
@sentry/vue	38.71 kB	+1.7%	+646 B 🔺
@sentry/vue (incl. Tracing)	55.75 kB	+1.3%	+715 B 🔺
@sentry/svelte	30.59 kB	+2.2%	+656 B 🔺
@sentry/remix (Remix 3 client bundle)	57.84 kB	+1.27%	+722 B 🔺
CDN Bundle	32.14 kB	+1.5%	+474 B 🔺
CDN Bundle (incl. Tracing)	53.09 kB	+0.92%	+480 B 🔺
CDN Bundle (incl. Logs, Metrics)	34.34 kB	+1.4%	+471 B 🔺
CDN Bundle (incl. Tracing, Logs, Metrics)	55.04 kB	+0.89%	+484 B 🔺
CDN Bundle (incl. Replay, Logs, Metrics)	75.29 kB	+0.67%	+499 B 🔺
CDN Bundle (incl. Tracing, Replay)	90.75 kB	+0.53%	+476 B 🔺
CDN Bundle (incl. Tracing, Replay, Logs, Metrics)	92.69 kB	+0.52%	+479 B 🔺
CDN Bundle (incl. Tracing, Replay, Feedback)	96.89 kB	+0.49%	+470 B 🔺
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics)	98.86 kB	+0.5%	+486 B 🔺
CDN Bundle - uncompressed	94.44 kB	+1.24%	+1.15 kB 🔺
CDN Bundle (incl. Tracing) - uncompressed	157.29 kB	+0.74%	+1.15 kB 🔺
CDN Bundle (incl. Logs, Metrics) - uncompressed	100.99 kB	+1.16%	+1.15 kB 🔺
CDN Bundle (incl. Tracing, Logs, Metrics) - uncompressed	163.26 kB	+0.72%	+1.15 kB 🔺
CDN Bundle (incl. Replay, Logs, Metrics) - uncompressed	231.03 kB	+0.51%	+1.15 kB 🔺
CDN Bundle (incl. Tracing, Replay) - uncompressed	277.46 kB	+0.42%	+1.15 kB 🔺
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) - uncompressed	283.42 kB	+0.41%	+1.15 kB 🔺
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed	291.16 kB	+0.4%	+1.15 kB 🔺
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) - uncompressed	297.11 kB	+0.39%	+1.15 kB 🔺
@sentry/nextjs (client)	57.91 kB	+1.05%	+601 B 🔺
@sentry/sveltekit (client)	53.29 kB	+1.55%	+812 B 🔺
@sentry/core/server	43.52 kB	+4.13%	+1.73 kB 🔺
@sentry/core/browser	13.81 kB	-	-
@sentry/node	153.28 kB	+0.44%	+659 B 🔺
@sentry/node/import (ESM hook with diagnostics-channel injection)	81.58 kB	-	-
@sentry/node - without tracing	94.9 kB	+0.69%	+648 B 🔺
@sentry/node - without channel injection	133.92 kB	+0.47%	+616 B 🔺
@sentry/aws-serverless	103.15 kB	+0.7%	+711 B 🔺
@sentry/cloudflare (withSentry) - minified	213.13 kB	+0.96%	+2.02 kB 🔺
@sentry/cloudflare (withSentry)	528.73 kB	+0.94%	+4.9 kB 🔺
@sentry/nextjs/cloudflare (withSentry) - minified	232.75 kB	+0.88%	+2.01 kB 🔺

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github-actions · 2026-10-21T15:40:45Z

One or more gzipped bundles increased by more than 500 bytes. If this increase is intentional, add the Accept Bundlesize Increase label to this PR to rerun and accept the check.

github-actions · 2026-10-22T10:15:39Z

👋 @isaacs, @mydea, @Lms24, @JPeer264, @chargome, @s1gr1d — Please review this PR when you get a chance!

github-actions · 2026-10-22T15:13:14Z

Optional E2E tests

All optional checks were successful. 2 successful. See the run.

Successful checks

	Check	Status
✅	CI: Optional E2E Tests / E2E astro-7 Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E astro-7-static Test (optional)	Successful in 1m	Details

The Sentry middleware runs first and answers tunnel requests. The integration hands Astro's `base` and `trailingSlash: 'always'` to both SDKs, so `tunnel: true` follows Astro's routing without repeating them.

…orks on a cold server

This reverts commit 6647a68. The middleware module ran the inline default init a second time, and running the init before a cold non-page request is a gap develop has for every server request, not one the tunnel adds.

The server's tunnel base path only reached `@sentry/astro`'s own server init. On Workers the client comes from `@sentry/cloudflare`, so the browser posted under `base` and got a 404. The server side of the tunnel options module now goes through core's managed tunnel defaults, and the Worker entry imports it first.

…the tunnel variant, and drop tests that repeat core's

…_` name

…request from a prerendered page finds a client

logaretm added this pull request to stack #25201 October 15, 2026 16:04

logaretm force-pushed the awad/tunnel-astro branch 2 times, most recently from 3dfbedc to e9cafef Compare October 15, 2026 16:38

logaretm force-pushed the awad/tunnel-astro branch from e9cafef to aa89862 Compare October 15, 2026 17:15

logaretm force-pushed the awad/tunnel-astro branch from aa89862 to 3b1e94f Compare October 15, 2026 17:36

logaretm force-pushed the awad/tunnel-astro branch from 3b1e94f to f8eea69 Compare October 15, 2026 17:44

logaretm force-pushed the awad/tunnel-astro branch from f8eea69 to bb2078f Compare October 15, 2026 18:16

logaretm force-pushed the awad/tunnel-astro branch from bb2078f to 9c5e4d6 Compare October 15, 2026 18:26

logaretm force-pushed the awad/tunnel-astro branch from 9c5e4d6 to 62ef54d Compare October 15, 2026 18:28

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Comment thread packages/astro/src/server/middleware.ts

logaretm force-pushed the awad/tunnel-astro branch from 62ef54d to 40a29bc Compare October 16, 2026 01:51

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logaretm force-pushed the awad/tunnel-astro branch from 40a29bc to fcb4724 Compare October 16, 2026 02:25

logaretm force-pushed the awad/tunnel-astro branch from fcb4724 to acf7baf Compare October 16, 2026 03:32

logaretm force-pushed the awad/tunnel-astro branch 2 times, most recently from 3c79c4e to cd1c651 Compare October 16, 2026 14:00

logaretm force-pushed the awad/tunnel-astro branch from 740bba2 to d05ec99 Compare October 19, 2026 19:12

logaretm marked this pull request as ready for review October 19, 2026 19:36

logaretm requested a review from a team as a code owner October 19, 2026 19:37

logaretm requested review from chargome and s1gr1d and removed request for a team October 19, 2026 19:37

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Comment thread dev-packages/e2e-tests/test-applications/astro-7/tests/tunnel.test.ts Outdated

Comment thread dev-packages/e2e-tests/test-applications/astro-7/tests/tunnel.test.ts Outdated

logaretm requested review from a team as code owners October 19, 2026 20:08

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Comment thread dev-packages/e2e-tests/test-applications/astro-6-cf-workers/tests/tunnel.test.ts

logaretm mentioned this pull request Oct 20, 2026

feat(core): Add managed tunnel helpers that derive the tunnel path from the DSN #25199

Merged

logaretm added 12 commits October 23, 2026 17:24

feat(astro): Serve the managed tunnel from the Sentry middleware

fce3c9e

The Sentry middleware runs first and answers tunnel requests. The integration hands Astro's `base` and `trailingSlash: 'always'` to both SDKs, so `tunnel: true` follows Astro's routing without repeating them.

fix(astro): Run the server init before the middleware so the tunnel w…

9ea0382

…orks on a cold server

fix(astro): Serve a relative tunnel path under the base path too

24fecc3

test(astro): Check the managed tunnel under astro dev too

48dbfd8

ref(astro): Import the tunnel handler from @sentry/core/server

5882074

test(astro): Race the tunnel span with the shared helper, run dev in …

b0cc8a2

…the tunnel variant, and drop tests that repeat core's

ref: Import the internal tunnel helpers under their _INTERNAL_ names

6466626

ref(astro): Re-export the tunnel defaults setter under its `_INTERNAL…

eb735c5

…_` name

ref(astro): Type the injected tunnel options as browser tunnel options

1d054ed

fix(astro): Run the server init from the middleware too, so a tunnel …

8bdf21d

…request from a prerendered page finds a client

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feat(astro): Serve the managed tunnel from the Sentry middleware - #25419

feat(astro): Serve the managed tunnel from the Sentry middleware#25419
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