Intermittent timeout in /websockets/constructor/022.html

```
  ▶ TIMEOUT [expected OK] /websockets/constructor/022.html
  │ 
  └ Xlib:  extension "XFree86-VidModeExtension" missing on display ":0".

  ▶ Unexpected subtest result in /websockets/constructor/022.html:
  │ TIMEOUT [expected PASS] WebSockets: protocol array
  └   → Test timed out
```
