[BUG] webkit can disable mouse when evaluating specified JavaScript code

[zyscoder]

• Version: playwright@1.10.0
• Platform: Linux zys-lab204l 5.8.0-50-generic feat: playwright.downloadBrowser #56~20.04.1-Ubuntu SMP Mon Apr 12 21:46:35 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
• Subsystem: webkit

What steps will reproduce the bug?

Run the following code with node.js, and then the mouse would be disabled and has no any action until killing the node.js process.

const { webkit } = require('playwright');

(async () => {
    const browser = await webkit.launch({headless: false});
    const context = await browser.newContext();
    const page = await context.newPage();
    await page.goto('http://www.stanford.edu/');
    const code = "document.all[78].ontouchstart = null;document.all[78].requestPointerLock();" 
    await page.evaluate(code);
})();

[JoelEinbinder]

I get that its somewhat unexpected, but this is actually working as intended. Running with headless: false has the browser doing everything browsers usually do, including locking your pointer sometimes.

If you want to avoid this, run headless: true or use xvfb-run node yourscript.js.