browser.newPage never resolves when using `userDataDir`

browser.newPage() never resolve when using userDataDir in launch options.

Strangely, it only works when using headless: false.

Steps to reproduce

Tell us about your environment:

• Puppeteer version: 1.4
• Platform / OS version: Windows 10
• URLs (if applicable):
• Node.js version: 10.0

What steps will reproduce the problem?

  const browser = await puppeteer.launch({
    // headless: false, // un-commenting this makes it works
    userDataDir: 'test-profile-dir',
  });
  await browser.newPage();
  // Never reaches here
  console.log('If this logs, it worked!');

Please include code that reproduces the issue.

https://github.com/laggingreflex/puppeteer-userDataDir-hang

What is the expected result?

browser.newPage() should resolve and above code should be able to reach console.log statement

What happens instead?

It doesn’t

[laggingreflex]

It also seems to work when full path is provided: __dirname + '/test-profile-dir'

[derekyle]

Just for anyone’s reference, this issue still presents itself in version 1.20.0. When headless = true, then you must provide a full path instead of a relative one for userDataDir. In the case of headless = false, it works fine with both full and relative paths.