Cross-posting from headless-dev, originally posted by james@getadmiral.com:

I'm running Chrome using:
$ google-chrome-unstable --headless --remote-debugging-port=9222

Version is:
$ google-chrome-unstable --version
Google Chrome 58.0.3018.3 dev

I'm installing google-chrome-unstable using yum and the repo is https://dl.google.com/linux/chrome/rpm/stable/$basearch.

The response from /json/version is:
{
   "Browser": "",
   "Protocol-Version": "1.2",
   "User-Agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome Safari/537.36",
   "V8-Version": "5.8.244",
   "WebKit-Version": "537.36 (@9f90720567a93b798d314c9d4af6bdd092a07767)"
}

The empty "Browser" is causing the client library, chrome-remote-interface (https://github.com/cyrus-and/chrome-remote-interface), to not understand what browser it's talking to. Is there a command-line flag I need to pass so it sends back "Chrome/..." or do I have to just make the client library assume it's always Chrome if its empty?