Headless Chrome version detected to be 0.0.0 on Linux

[applecool]

Expected behaviour

Karma should display a real version number of Chrome Headless.

Actual behaviour

It always displays HeadlessChrome 0.0.0 (Linux 0.0.0).

Environment Details

• OS version: Ubuntu 16.04.3 LTS
• Karma version (output of karma --version):
  2.0.0
• Relevant part of your karma.config.js file
  browsers: ['ChromeHeadless']

Steps to reproduce the behaviour

1. Specify browsers: ['ChromeHeadless'] in the Karma config.
2. Run any tests.
3. Look at the terminal.

Console Output:

26 01 2018 07:24:08.869:INFO [launcher]: Starting browser ChromeHeadless
26 01 2018 07:24:09.145:INFO [HeadlessChrome 0.0.0 (Linux 0.0.0)]: Connected on socket rmz46iav0YsA7WiUAAAA with id 10185539

[lusarz]

It may be related with:
3rd-Eden/useragent#118

[mmermerkaya]

In my project, HeadlessChrome version detection works fine in Karma 2.0.0, but doesn't work in 2.0.2.

[mmermerkaya]

Looks like it's because useragent was downgraded from 2.3.0 to 2.2.1 in #2937, most likely because of this bug: 3rd-Eden/useragent#120.

So it's either proper Windows versions or proper HeadlessChrome version... 😕

[rkuzsma]

Dupe of #2762

[mgol]

This issue should be closed as it's a duplicate and the issue it duplicates is already closed.