[BUG] Electron firstWindow times out after upgrading to 1.28.1

Issue has been reported with 1.28.0: https://github.com/microsoft/playwright/issues/18928 but it was not fixed with https://github.com/microsoft/playwright/pull/18972 (1.28.1)

Context:

• Playwright Version: 1.28.1
• Operating System: Tested on Windows and Mac
• Node.js version: 16
• Browser: Electron
• Extra: Wasn’t a problem in 1.27.1 or below. Repros 100% of the time after upgrading.

Code Snippet

import { ElectronApplication, Page, _electron as electron } from "playwright";

(async () => {
  const electronApp = await electron.launch({
            args: [path.join(__dirname, "../dist/App.js"),
            '--enable-logging',
            '--skip-welcome',
            '--disable-telemetry',
            '--no-cached-data',
            ],
            env: {
                automation: "1",
                authConfig: JSON.stringify(config),
            }
        });
  const page = await electronApp.firstWindow(); // times out after 30 seconds
})();

Describe the bug

After upgrading to 1.28.0 or 1.28.1, Electron tests are all timing out. Downgrading to 1.27.1 resolves the issue. Example test to assist in repro can be found here

[cawa-93]

Probably fixed in 1.29.1

[benoitf]

There is a template repository https://github.com/cawa-93/vite-electron-builder Update of playwright is failing on https://github.com/cawa-93/vite-electron-builder/pull/874 due to a timeout (as described by this issue)