Chrome-beta 81: "The automation client disconnected. Cannot continue running tests."

[bsodmike]

Current behavior:

We had no issues with chromium 79, however, now with chromium 80 or Chrome-beta chrome-81, we get the following error:

Error "The automation client disconnected. Cannot continue running tests."

Desired behavior:

As with chromium 79, specs should run just fine.

Versions

• Cypress 3.3.2
• Chromium 80
• Chrome (beta) 81

[bsodmike]

Seeing #6023 I'm not entirely sure it's worth doing a manual install of Chromium 79

[jennifer-shehane]

We have a PR open to test against Chrome 80 that may potentially find some issues. #6428 cc @flotwig

[dthomason]

Also seeing this issue in CI with Chrome 80

[bsodmike]

Hey @jennifer-shehane Thanks for the feedback!

I took a deeper look at the issue by building Chromium 78.0.3904.130 as I wasn't sure exactly which build "broke" between 79 and 80/81.

This provided a bit more insight with the additional detail of Timed out waiting for the browser to connect. Retrying....

================================================================================

  (Run Starting)

  ┌────────────────────────────────────────────────────────────────────────────┐
  │ Cypress:  3.3.2                                                            │
  │ Browser:  Custom Chromium 78                                               │
  │ Specs:    24 found (active_members/change_status_spec.js, active_members/… │
  │ Searche…  spec/cypress/integration/active_members/change_status_spec.js, … │
  └────────────────────────────────────────────────────────────────────────────┘


────────────────────────────────────────────────────────────────────────────────

  Running: active_members/change_status_spec.js...                    (1 of 24) 

Warning: Cypress can only record videos when using the built in 'electron' browser.

You have set the browser to: 'chromium'

A video will not be recorded when using this browser.

Timed out waiting for the browser to connect. Retrying...
The automation client disconnected. Cannot continue running tests.

Here's the full log with debugging turned on. I also took a look at the fixes you were posting at #6428 and interestingly there seems to be some issue with https-proxying going on here as well.

Chromium seems to be:

• calling out to https://www.gstatic.com:443
• calling out to accounts.google.com:443 (this is probably to set the user account on the browser)
• From this point onwards there are gibberish proxied calls to cypress:server:proxy handling proxied request { url: '/', proxiedUrl: 'http://rcuofdbafhynfb/' and this continues. I'm seeing this issue being reported here Cypress test case hangs in docker environment in case of any failure test-case where it runs seamlessly outside docker #5263 but that issue is in the context of Docker. FYI I'm not testing with Docker.

[bsodmike]

@jennifer-shehane I wanted to verify behaviour with Chromium 80 (default Ubuntu install) and Cypress 3.3.2; here's the full log (see my comment in the at the bottom of the linked Gist).

The timeout behaviour does not present itself in this case. Hope this will help you diagnose the issue further.

[bsodmike]

Upgrading Cypress has resolved this issue. However, @jennifer-shehane I noticed when reviewing the debug logs, those strange errors were presenting themselves (those cryptic URLs in my gist).

│ Cypress: 4.0.2 │
│ Browser: Chromium 80

[jennifer-shehane]

Closing as resolved.

If you're experiencing a bug similar to this in Cypress, please open a new issue with a fully reproducible example that we can run. There may be a specific edge case with the issue that we need more detail to fix.