Google Chrome 75.0.3770.80 HEADLESS no longer works inside Docker container

This was originally reported as https://github.com/karma-runner/karma/issues/3328 but the Karma team asked it be reported here instead.

In short, Chrome 74 headless worked flawless with karma-chrome-launcher from inside a Docker container but when Chrome 75 releases karma can no longer connect. Several folks with otherwise valid configuration starting hitting this bug shortly after Chrome 75 was released.

For completeness, here is the launcher configuration being used (but as I said, the only thing that changed between working/not working was Chrome version

        customLaunchers: {
            ChromeDocker: {
                base: 'ChromeHeadless',
                flags: [
                    '--no-sandbox'
                ]
            }
        },

[zps938]

Using the --disable-dev-shm-usage flag fixed this for me.

[rogeriopvl]

Thanks for reporting @mramato

I’ll have a look at it as soon as possible.