Electron Releases

Description of Change

The spec returns an opaque response for a registerFileProtocol scheme fetched cross-origin with mode: no-cors wrote a temporary file for its handler to serve. Right after the fetch, it removed the directory with fs.rmSync.

On Windows CI that removal failed with ENOTEMPTY on both tries that reached it:

• Another handle still had the file open with FILE_SHARE_DELETE.
• Electron builds Node's fs.rmSync against libc++, whose Windows std::filesystem deletes without POSIX semantics.
• So the file stayed in the directory, pending deletion, and the directory could not be removed.

The test only needs a file whose body the opaque response must hide. It now serves the existing spec/fixtures/hello.txt, so there is nothing to delete. The assertions are unchanged: type opaque, status 0, and an empty body.

On 42-x-y and 43-x-y this test is the only user of os in the file, so those backports also need the now-unused import * as os from 'node:os'; removed.

🤖 Generated with Claude Code

Checklist

• I have built and tested this change
• I have filled out the PR description
• I have reviewed and verified the changes
• tests are changed or added

Release Notes

Notes: none