Page.Authenticate() does not work if using chrome instead of Chromium

Steps to reproduce

Puppeteer version: V1.5.0 Platform / OS version: Windows Node.js version: 8.11.2

What steps will reproduce the problem?

 this.browser = await puppeteer.launch({
       headless: this.options.headless,
      executablePath: findChrome(),
     args: [`--proxy-server=${iP}:${port}`]
});
 await this.page.authenticate({
     username: user,
     password: pass
})

What is the expected result? Page opens, page.authentciate will auth the proxy and allow the browser to run on that proxy

What happens instead? page.authenticate does not work, prompts user to enter information

[boxpositron]

Same issue here

[ibrahimelement]

Same issue here

71.0.3578.98 (Official Build) (64-bit)