Inconsistent source maps

[sheremet-va]

Describe the bug

When passing down SSR flag to transformRequest, it returns incorrect map sources (should be relative, like when you don't pass ssr flag) if the file has .js extension and didn't have a map before. I wasn't able to reproduce the issue any other way.

Reproduction

https://stackblitz.com/edit/node-tb5tp5?file=folder%2Ftest.js,index.js

Steps to reproduce

Run node index.js

System Info

Stackblitz

Used Package Manager

npm

Logs

No response

Validations

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• The provided reproduction is a minimal reproducible example of the bug.

[stackblitz]

Start a new pull request in StackBlitz Codeflow.

• node-tb5tp5 (Open reproduction)

[sheremet-va]

Made a manual reproduction of

sources field is not consistent with other source maps. It should always be relative to the source map. Currently, it just puts whatever you pass down to transformRequest.