Electron Releases

Description of Change

The in-process iframe spec can time out after fullscreen entry succeeds. Hidden pages can defer fullscreenchange, which the fixture uses to signal completion. Await loading and the fullscreen request instead. Keep parent-event coverage in a separate test with background throttling disabled.

The BrowserWindow state test reuses settled event promises on its second cycle. Wait for fresh events on each transition and identify the phase and menu-bar state in assertion failures.

Found while investigating downstream CI. An isolated Linux/Xvfb probe reproduced deferred event delivery after successful entry. This does not establish the cause of the Windows ARM64 CI timeouts.

Validation

• Focused Node checks exercise the actual spec callbacks and page script, including delayed events, rejected requests, missing parent events, and both menu-bar states.
• Lint, formatting, and pre-commit checks pass.
• 45-x-y, 44-x-y, 43-x-y, and 42-x-y contain identical affected test bodies and the same fixture. The patch applies cleanly to all four; the required API is present.
• Native Electron tests for the final patch, including Windows ARM64 validation, have not been run.

Checklist

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

Release Notes

Notes: none