feat(sveltekit): Serve the managed tunnel from `sentryHandle` under the app's base path by logaretm · Pull Request #25415 · getsentry/sentry-javascript

logaretm · 2026-10-15T15:33:50Z

Implements sveltekit tunnel wiring, the way it works is:

Our Vite plugin injects the base path (kit.paths.base) if it exists to both server/client bundles.
Our entry handler (sentryHandle) will check for any incoming request if it is a tunneled one, and if it matches it handles it.

(I made the decision to respect base paths rather than ignoring them, this is something to review in #25199)

This also adds a couple of shared e2e helpers to @sentry-internal/test-utils that the rest of the stack uses. The sveltekit-3 tunnel variants cover dev and prod, and there's one for Cloudflare Workers too.

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

closes #20256

github-actions · 2026-10-15T15:44:53Z

size-limit report 📦

Compared: 0823bbc (PR test merge using develop at 12757d0)

Against: ca4fc32 (develop) · base run #62950

⚠️ Baseline mismatch: 68 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 12757d0 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%	+649 B 🔺
@sentry/node - without channel injection	133.91 kB	+0.47%	+614 B 🔺
@sentry/aws-serverless	103.15 kB	+0.7%	+710 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 🔺

View base workflow run

logaretm · 2026-10-15T21:56:04Z

bugbot run

cursor

Stale Bugbot comment from a previous run.

logaretm · 2026-10-16T02:14:46Z

bugbot run

cursor

Stale Bugbot comment from a previous run.

logaretm · 2026-10-16T02:25:57Z

bugbot run

cursor

Stale Bugbot comment from a previous run.

cursor

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 5cbcc07. Configure here.}

github-actions · 2026-10-21T15:48:04Z

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 · 2026-10-21T16:03:11Z

Optional E2E tests

Some optional checks were not successful. They do not block the merge. 1 failing, 57 successful. See the run.

	Check	Status
❌	CI: Optional E2E Tests / E2E nextjs-16 (deno) Test (optional)	Failing after 7m	Details

Successful checks

	Check	Status
✅	CI: Optional E2E Tests / E2E angular (canary) Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E node-openai-send-to-sentry (latest) Test (optional)	Successful in 2m	Details
✅	CI: Optional E2E Tests / E2E node-fastify-6 (tracer provider) Test (optional)	Successful in 30s	Details
✅	CI: Optional E2E Tests / E2E astro-7 Test (optional)	Successful in 4m	Details
✅	CI: Optional E2E Tests / E2E nuxt-4 (canary) Test (optional)	Successful in 4m	Details
✅	CI: Optional E2E Tests / E2E cloudflare-mastra Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E gen-ai-libraries (cloudflare) Test (optional)	Successful in 2m	Details
✅	CI: Optional E2E Tests / E2E cloudflare-agent Test (optional)	Successful in 2m	Details
✅	CI: Optional E2E Tests / E2E cloudflare-flue-send-to-sentry Test (optional)	Successful in 3m	Details
✅	CI: Optional E2E Tests / E2E node-mastra (latest) Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E gen-ai-libraries Test (optional)	Successful in 35s	Details
✅	CI: Optional E2E Tests / E2E node-express-mcp-v2 Test (optional)	Successful in 16s	Details
✅	CI: Optional E2E Tests / E2E nuxt-3 (canary) Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E nuxt-4-static (canary) Test (optional)	Successful in 2m	Details
✅	CI: Optional E2E Tests / E2E vue-3 (canary) Test (optional)	Successful in 57s	Details
✅	CI: Optional E2E Tests / E2E nextjs-14 (latest) Test (optional)	Successful in 2m	Details
✅	CI: Optional E2E Tests / E2E node-openai-send-to-sentry Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E cloudflare-workers-send-to-sentry Test (optional)	Successful in 3m	Details
✅	CI: Optional E2E Tests / E2E node-pi-durable (latest) Test (optional)	Successful in 54s	Details
✅	CI: Optional E2E Tests / E2E tanstackstart-react-cloudflare Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E supabase-nextjs Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E angular (canary) Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E cloudflare-think (ai v6) Test (optional)	Successful in 55s	Details
✅	CI: Optional E2E Tests / E2E cloudflare-think Test (optional)	Successful in 53s	Details
✅	CI: Optional E2E Tests / E2E cloudflare-pi-durable (latest) Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E nextjs-15 (turbo) Test (optional)	Successful in 2m	Details
✅	CI: Optional E2E Tests / E2E react-router-7-framework-instrumentation Test (optional)	Successful in 2m	Details
✅	CI: Optional E2E Tests / E2E node-pi-durable Test (optional)	Successful in 25s	Details
✅	CI: Optional E2E Tests / E2E nuxt-5-sourcemaps (static / nuxt generate) Test (optional)	Successful in 43s	Details
✅	CI: Optional E2E Tests / E2E node-openai-decisions-send-to-sentry Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E cloudflare-pi-durable Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E nextjs-15 (latest) Test (optional)	Successful in 2m	Details
✅	CI: Optional E2E Tests / E2E deno (latest) Test (optional)	Successful in 46s	Details
✅	CI: Optional E2E Tests / E2E nextjs-14 (canary) Test (optional)	Successful in 3m	Details
✅	CI: Optional E2E Tests / E2E node-eve Test (optional)	Successful in 56s	Details
✅	CI: Optional E2E Tests / E2E astro-7-static Test (optional)	Successful in 57s	Details
✅	CI: Optional E2E Tests / E2E nextjs-16 (canary, turbopack) Test (optional)	Successful in 4m	Details
✅	CI: Optional E2E Tests / E2E solidstart-2 Test (optional)	Successful in 46s	Details
✅	CI: Optional E2E Tests / E2E node-eve (latest) Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E node-flue (latest) Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E node-fastify-6 Test (optional)	Successful in 34s	Details
✅	CI: Optional E2E Tests / E2E nextjs-16 (canary, webpack) Test (optional)	Successful in 5m	Details
✅	CI: Optional E2E Tests / E2E nextjs-16 (cloudflare, latest) Test (optional)	Successful in 2m	Details
✅	CI: Optional E2E Tests / E2E node-express-mcp-v1 Test (optional)	Successful in 18s	Details
✅	CI: Optional E2E Tests / E2E nextjs-16-tunnel (cloudflare) Test (optional)	Successful in 50s	Details
✅	CI: Optional E2E Tests / E2E nuxt-5 Test (optional)	Successful in 2m	Details
✅	CI: Optional E2E Tests / E2E node-openai-decisions-send-to-sentry (latest) Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E node-eve (orchestrion) Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E node-mastra Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E nextjs-orpc Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E nextjs-16 (vinext, bun) Test (optional)	Successful in 2m	Details
✅	CI: Optional E2E Tests / E2E nextjs-16 (vinext) Test (optional)	Successful in 2m	Details
✅	CI: Optional E2E Tests / E2E node-flue Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E vue-3 (no Options API) Test (optional)	Successful in 57s	Details
✅	CI: Optional E2E Tests / E2E nuxt-5-sourcemaps (client source maps kept) Test (optional)	Successful in 48s	Details
✅	CI: Optional E2E Tests / E2E nextjs-16-standalone (canary, turbopack) Test (optional)	Successful in 1m	Details
✅	CI: Optional E2E Tests / E2E nuxt-5-sourcemaps Test (optional)	Successful in 26s	Details

…he app's base path `sentryHandle` answers tunnel requests before isolation, tracing and routing. `sentrySvelteKit()` hands `paths.base` to the client and server SDKs, so `tunnel: true` works under a base path without repeating it.

…racing on

The tunnel handler now answers a request without one with a 411.

…, in one test per app

…ests of what the SDK adds

…dules as side-effect free

logaretm added this pull request to stack #25201 October 15, 2026 15:33

logaretm force-pushed the awad/tunnel-sveltekit branch 2 times, most recently from 364f99c to b6212f2 Compare October 15, 2026 15:36

logaretm force-pushed the awad/tunnel-sveltekit branch 2 times, most recently from de28310 to 47c1f76 Compare October 15, 2026 16:20

logaretm force-pushed the awad/tunnel-sveltekit branch from 47c1f76 to d1a7e32 Compare October 15, 2026 16:38

logaretm force-pushed the awad/tunnel-sveltekit branch from d1a7e32 to 17f5b0c Compare October 15, 2026 17:15

logaretm force-pushed the awad/tunnel-sveltekit branch from 17f5b0c to ff9f3cc Compare October 15, 2026 17:36

logaretm force-pushed the awad/tunnel-sveltekit branch 2 times, most recently from 7185904 to 0846a80 Compare October 15, 2026 18:16

logaretm force-pushed the awad/tunnel-sveltekit branch from 0846a80 to 2d31aba Compare October 15, 2026 18:26

logaretm force-pushed the awad/tunnel-sveltekit branch from 2d31aba to d7b1800 Compare October 15, 2026 18:28

cursor Bot reviewed Oct 15, 2026

View reviewed changes

Comment thread packages/sveltekit/test/vite/tunnelBasePath.test.ts

Comment thread dev-packages/e2e-tests/test-applications/sveltekit-3/tests/tunnel.test.ts Outdated

logaretm force-pushed the awad/tunnel-sveltekit branch from d7b1800 to 1d49365 Compare October 16, 2026 01:51

cursor Bot reviewed Oct 16, 2026

View reviewed changes

Comment thread packages/sveltekit/src/vite/tunnelBasePath.ts Outdated

logaretm force-pushed the awad/tunnel-sveltekit branch from 1d49365 to 89e93d5 Compare October 16, 2026 02:25

logaretm force-pushed the awad/tunnel-sveltekit branch from d0e1a76 to 05c691a Compare October 19, 2026 18:36

logaretm force-pushed the awad/tunnel-sveltekit branch from 05c691a to 36f589a 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 19:36

logaretm requested review from chargome and s1gr1d and removed request for a team October 19, 2026 19:36

cursor Bot reviewed Oct 19, 2026

View reviewed changes

Comment thread dev-packages/e2e-tests/test-applications/sveltekit-3/tests/tunnel.test.ts Outdated

Comment thread dev-packages/e2e-tests/test-applications/sveltekit-3/tests/tunnel.test.ts Outdated

Comment thread packages/sveltekit/src/vite/tunnelBasePath.ts Outdated

logaretm requested review from a team as code owners October 19, 2026 20:07

logaretm requested review from JPeer264 and isaacs and removed request for a team October 19, 2026 20:08

cursor Bot reviewed Oct 19, 2026

View reviewed changes

Comment thread dev-packages/test-utils/src/tunnel.ts

logaretm mentioned this pull request Oct 20, 2026

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

Open

logaretm added 10 commits October 21, 2026 12:40

fix(sveltekit): Keep source maps of the hooks files under a base path

86a49fa

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

e4efc12

test(sveltekit): Check the managed tunnel under vite dev too

6c0452c

test(sveltekit): Check no span of a tunnel request is sent with Kit t…

7a57fab

…racing on

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

05bca0e

test(sveltekit): Send Content-Length with the tunnel test requests

fca533c

The tunnel handler now answers a request without one with a 411.

test(sveltekit): Race the tunnel span with a shared test-utils helper…

55bcac2

…, in one test per app

ref(sveltekit): Let core skip an empty base path, and keep only the t…

0f4cd2e

…ests of what the SDK adds

fix(sveltekit): Keep the base path module when tree-shaking treats mo…

ea238c1

…dules as side-effect free

Conversation

logaretm commented Oct 15, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

github-actions Bot commented Oct 15, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

size-limit report 📦

Uh oh!

logaretm commented Oct 15, 2026

Uh oh!

cursor Bot left a comment • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Choose a reason for hiding this comment

Uh oh!

Uh oh!

Uh oh!

logaretm commented Oct 16, 2026

Uh oh!

cursor Bot left a comment • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Choose a reason for hiding this comment

Uh oh!

Uh oh!

logaretm commented Oct 16, 2026

Uh oh!

cursor Bot left a comment • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Choose a reason for hiding this comment

Uh oh!

Uh oh!

Uh oh!

Uh oh!

cursor Bot left a comment

Choose a reason for hiding this comment

Uh oh!

Uh oh!

github-actions Bot commented Oct 21, 2026

Uh oh!

github-actions Bot commented Oct 21, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Optional E2E tests

Uh oh!

This branch has not been deployed

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

1 participant

logaretm commented Oct 15, 2026 •

edited

Loading

github-actions Bot commented Oct 15, 2026 •

edited

Loading

cursor Bot left a comment •

edited

Loading

cursor Bot left a comment •

edited

Loading

cursor Bot left a comment •

edited

Loading

github-actions Bot commented Oct 21, 2026 •

edited

Loading