Provided Chrome browser does not support DRM (widevine)

Current behavior:

When we try to play a DRM protected video in the chrome browser provided by cypress, our video player throws a error (drm/widevine is not supported). The same video in ordinary chrome plays well.

Desired behavior:

The video plays well in the browser

Steps to reproduce:

cy.visit('https://demo.castlabs.com/')

Big buck Bunny > MPEG-DASH > DRM (video should start playing) We have tried to set chromeWebSecurity: false, but it did not help. A friend of mine is saying that this is most likely caused by the fact that the site is running in a iframe in the cypress chrome browser, so it might have something to do with security in iframes etc.

Versions

Cypress 3.0.1 Chrome 67

[flotwig]

Cypress passes ‘–disable-component-update’ to Chrome on startup. I think that this prevents Widevine from being installed. Try filtering it out in the plugin file:

module.exports = (on, config) => {
  on('before:browser:launch', (browser = {}, launchOptions) => {
    if (browser.family === 'chromium' && browser.name !== 'electron') {
      launchOptions.args = launchOptions.args.filter(arg => arg !== '--disable-component-update')

      console.log('Chrome launch args:', launchOptions.args) // print all args

      return launchOptions
    }
  })
}

Note: this still won’t work in headless mode, Chrome --headless doesn’t support Widevine: https://bugs.chromium.org/p/chromium/issues/detail?id=788662

[sternbro]

@jennifer-shehane We would appreciate some feedback, will this ticket be investigated anytime soon?

As mentioned above, playback of DRM content is critical for us. So far we have started writing tests for other functions of our application, but at some point of time we will need the DRM playback to work. If the DRM support will continue to be missing in cypress, any test writing efforts will be of waste and we will be forced to use another tool.