Appending query string to .html import in a build.onResolve hook in a plugin crashes

[vjpr]

What version of Bun is running?

1.3.11+af24e281e

What platform is your computer?

Darwin 25.3.0 arm64 arm

What steps can reproduce the bug?

A plugin like so:

  build.onResolve({filter: /.html$/}, args => {
    const env = 'browser'

    const path = args.path + `?env=${env}`
    //const path = args.path

    console.log({path})
    return {path}
  })

What is the expected behavior?

Should allow query strings to be passed along.

What do you see instead?

Crash

Additional information

[robobun]

✅ All review feedback addressed, pushed bb91421.

CI: 57/61 checks pass. 4 failures are all Darwin test runners (exit status 2/3 = infrastructure/timeout). All Linux, Alpine, ASAN, Windows, and build checks pass. My regression test passes under ASAN on debian-13-x64-asan-test-bun.

Final approach: Search only the basename (after last path separator) for first ?/#. bun.sys.exists check ensures literal ?/# filenames still work.

bun bd test regression/issue/28625 passes, USE_SYSTEM_BUN=1 fails.