[BUG]: Uploading source maps with SST, Nitro and Tanstack Start ends up with 3 source map bundles

[sommeeeer]

Is there an existing issue for this?

• I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
• I have reviewed the documentation https://docs.sentry.io/
• I am using the latest SDK release https://github.com/getsentry/sentry-javascript/releases

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/tanstackstart-react

SDK Version

10.39.0

Framework Version

No response

Link to Sentry event

https://testappliaction.sentry.io/issues/97452943/?environment=production&query=is%3Aunresolved&referrer=issue-stream

Reproduction Example/SDK Setup

https://github.com/sommeeeer/sentry-nitro-tanstack-issue

Steps to Reproduce

sentry-nitro-tanstack-issue

Multiple source maps are uploaded for one project. In this case 3 times. Seems to be related to the Sentry plugin and Nitro not working together. My theory is that somewhere in the build pipeline the Sentry plugin gets triggered 3 times to upload source maps.

TODO

• Fill in all TODO: placeholders in source files (for this repro, start with src/router.tsx).

• Install dependencies:

   pnpm install

• Deploy to SST test stage:

   pnpm sst deploy --stage test

After deploy visist the https://domain.com/test page to trigger an error. See that the sourcemaps is not working.

Expected Result

I only want to see one source map being uploaded, and that it is the correct one. So my stack traces are actually with readable code.

Actual Result

Additional Context

Let me know if there is anything more I can provide for this issue to get attention.

Priority

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[linear]

JS-1750

[nicohrubec]

Hello, thanks for writing in. We'll take a look.

[sommeeeer]

Hello, thanks for writing in. We'll take a look.

Hi Nicolas! I was wondering if you guys are working with this one or if I should try to resolve to some workaround for now.

Im happy to provide more information or help in any way if that would help the progress on this one.

Wish you guys a good week!

I guess I could try this: #19182 ?

[nicohrubec]

Hey! You can try but I don't think the subpath export will help you with this. I haven't investigated this yet, so can't really give a timeline. Will post an update here when I have looked into this a bit more. If you find a workaround, definitely let me know!