Error: could not find CRI target / Failed to connect to Chrome #6053

limonte · 2019-12-27T14:25:30Z

Current behavior:

cypress run --headless --browser chrome is failing in GitHub Actions with this error:

Failed to connect to Chrome, retrying in 1 second (attempt 18/32)
could not find CRI target
Error: could not find CRI target
    at lazyAssLogic (/home/runner/.cache/Cypress/3.8.1/Cypress/resources/app/packages/server/node_modules/lazy-ass/index.js:110:14)
    at lazyAss (/home/runner/.cache/Cypress/3.8.1/Cypress/resources/app/packages/server/node_modules/lazy-ass/index.js:115:28)
    at /home/runner/.cache/Cypress/3.8.1/Cypress/resources/app/packages/server/lib/browsers/protocol.js:81:5
    at tryCatcher (/home/runner/.cache/Cypress/3.8.1/Cypress/resources/app/packages/server/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/home/runner/.cache/Cypress/3.8.1/Cypress/resources/app/packages/server/node_modules/bluebird/js/release/promise.js:547:31)
    at Promise._settlePromise (/home/runner/.cache/Cypress/3.8.1/Cypress/resources/app/packages/server/node_modules/bluebird/js/release/promise.js:604:18)
    at Promise._settlePromise0 (/home/runner/.cache/Cypress/3.8.1/Cypress/resources/app/packages/server/node_modules/bluebird/js/release/promise.js:649:10)
    at Promise._settlePromises (/home/runner/.cache/Cypress/3.8.1/Cypress/resources/app/packages/server/node_modules/bluebird/js/release/promise.js:729:18)
    at _drainQueueStep (/home/runner/.cache/Cypress/3.8.1/Cypress/resources/app/packages/server/node_modules/bluebird/js/release/async.js:93:12)
    at _drainQueue (/home/runner/.cache/Cypress/3.8.1/Cypress/resources/app/packages/server/node_modules/bluebird/js/release/async.js:86:9)
    at Async._drainQueues (/home/runner/.cache/Cypress/3.8.1/Cypress/resources/app/packages/server/node_modules/bluebird/js/release/async.js:102:5)
    at Immediate.Async.drainQueues [as _onImmediate] (/home/runner/.cache/Cypress/3.8.1/Cypress/resources/app/packages/server/node_modules/bluebird/js/release/async.js:15:14)
    at processImmediate (internal/timers.js:439:21)

Link to the failing build: https://github.com/sweetalert2/sweetalert2/runs/365206238

Steps to reproduce: (app code and test code)

Here's the GitHub Actions configuration: https://github.com/sweetalert2/sweetalert2/blob/master/.github/workflows/coverage.yml

The cy:run command is defined here: https://github.com/sweetalert2/sweetalert2/blob/master/package.json#L98

Versions

Cypress: 3.8.1
Operating System: Ubuntu 18.04

The text was updated successfully, but these errors were encountered:

gabbersepp · 2019-12-27T14:35:41Z

I also run into this issue but not always. Mostly if I start "cypress run" twice in a row.The issur started since the update from 3.8.0 to the new patch release

limonte · 2019-12-27T14:36:47Z

I also run into this issue but not always

Same for me, the build for PR was passing, but when I merged a PR into the master branch, the reported issue happened

limonte · 2019-12-27T14:40:53Z

Confirming the flakiness of the issue, just pushed another commit into master branch and the build is passing.

Just to clarify that it's most probably not caching issue as I'm not using any caching of node_modules. GitHub actions isn't caching anything by default and https://github.com/actions/cache isn't used in the linked project.

re-enable when cypress-io/cypress#6053 is fixed

jennifer-shehane · 2019-12-30T10:45:48Z

Could you run Cypress in debug mode mode and print the entire set of logs here?

dandriushchenko · 2019-12-30T11:03:38Z

Just fixed this issue with the command below to run locally at least:
rm -rf ~/Library/Caches/Cypress ./node_modules && yarn cache clean && yarn
But it failed on a second run so it's necessary to clear and install dependencies again before each headless cypress run.

MacOS 10.15.2
Cypress 3.8.1
Chrome 79.0.3945.88

limonte · 2019-12-30T12:39:25Z

Could you run Cypress in debug mode mode and print the entire set of logs here?

I can't run Cypress in any mode, including the debugging mode. The failure is happening before Cypress is started because in order to start Cypress needs to connect to the browser and the connection stage is failing:

See the whole output here: https://github.com/sweetalert2/sweetalert2/runs/365206238

jennifer-shehane · 2019-12-30T16:20:50Z

@limonte Cypress will print logs at the very beginning of cypress run, there will be logs even though it crashes here. Please run Cypress in debug mode and print the logs here.

samtsai · 2020-01-02T17:19:42Z

cypress:server:browsers:chrome launching in chrome with debugging port {
  url: 'https://TESTURL:PORT/__/#/tests/integration/register.spec.js',
  args: [
    '--test-type',
    '--ignore-certificate-errors',
    '--start-maximized',
    '--silent-debugger-extension-api',
    '--no-default-browser-check',
    '--no-first-run',
    '--noerrdialogs',
    '--enable-fixed-layout',
    '--disable-popup-blocking',
    '--disable-password-generation',
    '--disable-save-password-bubble',
    '--disable-single-click-autofill',
    '--disable-prompt-on-repos',
    '--disable-background-timer-throttling',
    '--disable-renderer-backgrounding',
    '--disable-renderer-throttling',
    '--disable-restore-session-state',
    '--disable-translate',
    '--disable-new-profile-management',
    '--disable-new-avatar-menu',
    '--allow-insecure-localhost',
    '--reduce-security-for-testing',
    '--enable-automation',
    '--disable-device-discovery-notifications',
    '--disable-infobars',
    '--autoplay-policy=no-user-gesture-required',
    '--disable-site-isolation-trials',
    '--metrics-recording-only',
    '--disable-prompt-on-repost',
    '--disable-hang-monitor',
    '--disable-sync',
    '--disable-web-resources',
    '--safebrowsing-disable-auto-update',
    '--safebrowsing-disable-download-protection',
    '--disable-client-side-phishing-detection',
    '--disable-component-update',
    '--disable-default-apps',
    '--use-fake-ui-for-media-stream',
    '--use-fake-device-for-media-stream',
    '--disable-ipc-flooding-protection',
    '--disable-backgrounding-occluded-window',
    '--disable-breakpad',
    '--password-store=basic',
    '--use-mock-keychain',
    '--proxy-server=http://localhost:57158',
    '--disable-web-security',
    '--allow-running-insecure-content',
    '--proxy-bypass-list=<-loopback>',
    '--headless',
    '--remote-debugging-port=58278',
    '--remote-debugging-address=127.0.0.1',
    '--disable-dev-shm-usage',
    '--user-data-dir=/Users/satsai/Library/Application Support/Cypress/cy/production/browsers/chrome/run-37207',
    '--disk-cache-dir=/Users/satsai/Library/Application Support/Cypress/cy/production/browsers/chrome/run-37207/CypressCache'
  ],
  port: 58278
} +2ms
cypress:launcher launching browser { name: 'chrome', family: 'chrome', displayName: 'Chrome', version: '79.0.3945.88', path: '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome', majorVersion: 79, isHeadless: true, isHeaded: false } to open about:blank +2m
  cypress:launcher spawning browser { name: 'chrome', family: 'chrome', displayName: 'Chrome', version: '79.0.3945.88', path: '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome', majorVersion: 79, isHeadless: true, isHeaded: false } with args about:blank --test-type --ignore-certificate-errors --start-maximized --silent-debugger-extension-api --no-default-browser-check --no-first-run --noerrdialogs --enable-fixed-layout --disable-popup-blocking --disable-password-generation --disable-save-password-bubble --disable-single-click-autofill --disable-prompt-on-repos --disable-background-timer-throttling --disable-renderer-backgrounding --disable-renderer-throttling --disable-restore-session-state --disable-translate --disable-new-profile-management --disable-new-avatar-menu --allow-insecure-localhost --reduce-security-for-testing --enable-automation --disable-device-discovery-notifications --disable-infobars --autoplay-policy=no-user-gesture-required --disable-site-isolation-trials --metrics-recording-only --disable-prompt-on-repost --disable-hang-monitor --disable-sync --disable-web-resources --safebrowsing-disable-auto-update --safebrowsing-disable-download-protection --disable-client-side-phishing-detection --disable-component-update --disable-default-apps --use-fake-ui-for-media-stream --use-fake-device-for-media-stream --disable-ipc-flooding-protection --disable-backgrounding-occluded-window --disable-breakpad --password-store=basic --use-mock-keychain --proxy-server=http://localhost:57158 --disable-web-security --allow-running-insecure-content --proxy-bypass-list=<-loopback> --headless --remote-debugging-port=58278 --remote-debugging-address=127.0.0.1 --disable-dev-shm-usage --user-data-dir=/Users/satsai/Library/Application Support/Cypress/cy/production/browsers/chrome/run-37207 --disk-cache-dir=/Users/satsai/Library/Application Support/Cypress/cy/production/browsers/chrome/run-37207/CypressCache +0ms
  cypress:server:browsers:chrome connecting to Chrome remote interface at random port 58278 +15ms
  cypress:server:protocol Getting WS connection to CRI on port 58278 +2m
  cypress:network:connect received error on connect, retrying { iteration: 0, delay: 100, err: Error: connect ECONNREFUSED 127.0.0.1:58278     at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1056:14) { errno: 'ECONNREFUSED', code: 'ECONNREFUSED', syscall: 'connect', address: '127.0.0.1', port: 58278 } } +5s
  cypress:network:connect received error on connect, retrying { iteration: 1, delay: 100, err: Error: connect ECONNREFUSED 127.0.0.1:58278     at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1056:14) { errno: 'ECONNREFUSED', code: 'ECONNREFUSED', syscall: 'connect', address: '127.0.0.1', port: 58278 } } +103ms
  cypress:network:connect successfully connected { opts: { getDelayMsForRetry: [Function: _getDelayMsForRetry], host: '127.0.0.1', port: 58278 }, iteration: 2 } +101ms
  cypress:server:protocol CRI.List on port 58278 +207ms
  cypress:server:protocol CRI List { numTargets: 0, targets: [] } +10ms
  cypress:server:cypress exiting with err Error: could not find CRI target
    at lazyAssLogic (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/lazy-ass/index.js:110:14)
    at lazyAss (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/lazy-ass/index.js:115:28)
    at /Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/lib/browsers/protocol.js:81:5
    at tryCatcher (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/promise.js:547:31)
    at Promise._settlePromise (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebcould not find CRI target
Error: could not find CRI target
    at lazyAssLogic (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/lazy-ass/index.js:110:14)
    at lazyAss (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/lazy-ass/index.js:115:28)
    at /Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/lib/browsers/protocol.js:81:5
    at tryCatcher (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/promise.js:547:31)
    at Promise._settlePromise (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/promise.js:604:18)
    at Promise._settlePromise0 (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/promise.js:649:10)
    at Promise._settlePromises (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/promise.js:729:18)
    at _drainQueueStep (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/async.js:93:12)
    at _drainQueue (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/async.js:86:9)
    at Async._drainQueues (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/async.js:102:5)
    at Immediate.Async.drainQueues [as _onImmediate] (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/async.js:15:14)
    at processImmediate (internal/timers.js:439:21)

ird/js/release/promise.js:604:18)
    at Promise._settlePromise0 (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/promise.js:649:10)
    at Promise._settlePromises (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/promise.js:729:18)
    at _drainQueueStep (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/async.js:93:12)
    at _drainQueue (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/async.js:86:9)
    at Async._drainQueues (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/async.js:102:5)
    at Immediate.Async.drainQueues [as _onImmediate] (/Users/satsai/Library/Caches/Cypress/3.8.1/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/async.js:15:14)
    at processImmediate (internal/timers.js:439:21)
 +3m
  cypress:server:file get values from /Users/satsai/Library/Application Support/Cypress/cy/production/cache +0ms
  cypress:server:file attempt to get lock on /Users/satsai/Library/Application Support/Cypress/cy/production/cache +2ms
  cypress:server:file gettin lock succeeded or failed for /Users/satsai/Library/Application Support/Cypress/cy/production/cache +3ms
  cypress:server:file read /Users/satsai/Library/Application Support/Cypress/cy/production/cache +0ms
  cypress:server:file read succeeded or failed for /Users/satsai/Library/Application Support/Cypress/cy/production/cache +1ms
  cypress:server:file attempt to unlock /Users/satsai/Library/Application Support/Cypress/cy/production/cache +1ms
  cypress:server:file unlock succeeded or failed for /Users/satsai/Library/Application Support/Cypress/cy/production/cache +0ms
  cypress:server:api request to url: POST https://api.cypress.io/exceptions with params: {"body":{"err":{"name":"Error","message":"could not find CRI target","stack":"Error: could not find CRI target\n    at lazyAssLogic (<stripped-path>index.js:110:14)\n    at lazyAss (<stripped-path>index.js:115:28)\n    at <stripped-path>protocol.js:81:5\n    at tryCatcher (<stripped-path>util.js:16:23)\n    at Promise._settlePromiseFromHandler (<stripped-path>promise.js:547:31)\n    at Promise._settlePromise (<stripped-path>promise.js:604:18)\n    at Promise._settlePromise0 (<stripped-path>promise.js:649:10)\n    at Promise._settlePromises (<stripped-path>promise.js:729:18)\n    at _drainQueueStep (<stripped-path>async.js:93:12)\n    at _drainQueue (<stripped-path>async.js:86:9)\n    at Async._drainQueues (<stripped-path>async.js:102:5)\n    at Immediate.Async.drainQueues [as _onImmediate] (<stripped-path>async.js:15:14)\n    at processImmediate (internal<stripped-path>timers.js:439:21)\n"},"version":"3.8.1","osName":"darwin","osVersion":"18.7.0","osCpus":[{"model":"Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz","speed":2800,"times":{"user":2345640,"nice":0,"sys":1432990,"idle":7241720,"irq":0}},{"model":"Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz","speed":2800,"times":{"user":297000,"nice":0,"sys":200760,"idle":10522090,"irq":0}},{"model":"Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz","speed":2800,"times":{"user":2085650,"nice":0,"sys":1055880,"idle":7878330,"irq":0}},{"model":"Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz","speed":2800,"times":{"user":295360,"nice":0,"sys":182810,"idle":10541680,"irq":0}},{"model":"Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz","speed":2800,"times":{"user":1898740,"nice":0,"sys":905540,"idle":8215580,"irq":0}},{"model":"Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz","speed":2800,"times":{"user":296530,"nice":0,"sys":170750,"idle":10552570,"irq":0}},{"model":"Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz","speed":2800,"times":{"user":1686060,"nice":0,"sys":767000,"idle":8566800,"irq":0}},{"model":"Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz","speed":2800,"times":{"user":298300,"nice":0,"sys":161060,"idle":10560500,"irq":0}}],"osMemory":{"free":1325580288,"total":17179869184}},"headers":{"x-os-name":"darwin","x-cypress-version":"3.8.1"}} and token: undefined +0ms
  cypress:network:agent addRequest called { isHttps: true, href: 'https://api.cypress.io/exceptions' } +3s
  cypress:network:connect beginning getAddress { hostname: 'api.cypress.io', port: 443 } +36ms
  cypress:server:cypress about to exit with code 1 +25ms
  cypress:cli child event fired { event: 'exit', code: 1, signal: null } +3m
  cypress:cli child event fired { event: 'close', code: 1, signal: null } +0ms
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

Tail end of logs for me where I see the error.

custompro12 · 2020-01-02T22:48:19Z

Can confirm the error is flaky. After trying a few times it will eventually run.

stefee · 2020-01-05T14:45:43Z

~~Seeing this error after upgrading Node version to v12 and Chrome to v79 (Cypress version unchanged).~~

Update: this was a coincidence of timing. We are seeing this error in about 1/2 of our test runs.

stefee · 2020-01-05T23:29:12Z

Possibly related to #5960

Shahar-Behalf · 2020-01-06T08:57:06Z

Downgrading to Cypress 3.8.0 solved the issue for me, look like this issue introduced in the latest version (3.8.1)

fr0 · 2020-01-06T22:11:49Z

This happened for me in 3.8.1 when using the Cypress Module API (cypress.run) with {browser: 'chrome', headless: true, headed: false} (aside: why are there two flags for this?)

Downgrading to Cypress 3.8.0 solved the issue for me, look like this issue introduced in the latest version (3.8.1)

But 3.8.0 has #5949 so you still won't be able to use Chrome headless if you downgrade.

hungvhau · 2020-01-07T07:00:55Z

Also having this issue... making a post so I can follow and see if this will be resolved. I am in the same boat where 1/2 of the tests fail with this error.

PetMou · 2020-01-07T09:29:03Z

Not quite sure, but I have the impression that the issue appears when another Chrome session is active during the test run. When I close chrome and keep it closed during a 'cypress run', everything runs fine (Windows 10).

sebinsua · 2020-01-07T11:09:47Z

I'm also getting this error occasionally. (Running within a Docker container, so I don't think it's due to multiple Chrome sessions being open, unless from a previous test suite.)

limonte · 2020-01-07T11:19:06Z

<offtopic>

making a post so I can follow and see if this will be resolved

@hunghau there's the "Subscribe" button for that purpose:

</offtopic>

PetMou · 2020-01-08T07:43:04Z

You are right @sebinsua. I also got the issue in our OpenShift Jenkins pipeline (Linux)

Darknico · 2020-01-08T16:08:05Z

I am having this issue after update to 3.8.1, any news?

TheDutchCoder · 2020-01-08T19:07:37Z

I'm locally getting this error, randomly. Sometimes it runs fine, sometimes it doesn't.

It can happen at any given time, but always between switching spec files, never within a test (so it either boots or not, basically).

marcinczop · 2020-01-09T16:23:53Z

I am getting the same error while running headless tests (it happens randomly while spec file is switching to another one)

jennifer-shehane · 2020-01-09T17:00:40Z

This line of code is ending up evaluating as not defined.

https://github.com/cypress-io/cypress/blob/develop/packages/server/lib/browsers/protocol.js#L79:L79

Another relevant thread: #5966

@fr0 There are 2 flags for the same thing for convenience. You should never need to pass both.

bahmutov · 2020-01-09T20:04:05Z

Ok, got the error on Mac

using Chrome Canary
changed Canary settings to restore previous session tabs (lots of tabs!!!)
installed a lot of Chrome extensions

Then it failed to connect

The terminal is showing

HEAD / - - ms - -
HEAD / - - ms - -
  cypress:server:browsers killing browser process +27s
  cypress:server:browsers browser process killed +130ms
  cypress:server:browsers getBrowserLauncherByFamily { family: 'chrome' } +909ms
  cypress:server:browsers opening browser { displayName: 'Canary', family: 'chrome', isChosen: true, majorVersion: 81, name: 'canary', path: '/Applications/Google Chrome Canary.app/Contents/MacOS/Google Chrome Canary', version: '81.0.4022.0', isHeaded: true, isHeadless: false } +0ms
launching browser {
  displayName: 'Canary',
  family: 'chrome',
  isChosen: true,
  majorVersion: 81,
  name: 'canary',
  path: '/Applications/Google Chrome Canary.app/Contents/MacOS/Google Chrome Canary',
  version: '81.0.4022.0',
  isHeaded: true,
  isHeadless: false
}
adding React DevTools extension from /Users/gleb/git/cypress-test-tiny/4.2.1_0
  cypress:server:protocol Getting WS connection to CRI on port 51298 +28s
  cypress:server:protocol CRI.List on port 51298 +308ms
  cypress:server:protocol CRI List { numTargets: 1, targets: [ { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:51298/devtools/page/52BB7BD3D24CBEB635CBED4881246A40', id: '52BB7BD3D24CBEB635CBED4881246A40', title: 'Sortify', type: 'background_page', url: 'chrome-extension://aehmpfeibpcclkbjjkclhncmjncpebef/_generated_background_page.html', webSocketDebuggerUrl: 'ws://localhost:51298/devtools/page/52BB7BD3D24CBEB635CBED4881246A40' } ] } +89ms
HEAD / - - ms - -
HEAD / - - ms - -
HEAD / - - ms - -

The Chrome Canary looks like this

BUT I can query the list of connection targets on port 51298

$ curl http://localhost:51298/json/list
[ {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/ABD0D9E55AB47AA826F60DD59FC63186",
   "id": "ABD0D9E55AB47AA826F60DD59FC63186",
   "title": "about:blank",
   "type": "page",
   "url": "about:blank",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/ABD0D9E55AB47AA826F60DD59FC63186"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/4D36E3008E111908B543A6D8886B8BF0",
   "id": "4D36E3008E111908B543A6D8886B8BF0",
   "title": "#1 Web &amp; PDF Highlighter - LINER",
   "type": "background_page",
   "url": "chrome-extension://bmhcbmnbenmcecpmpepghooflbehcack/_generated_background_page.html",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/4D36E3008E111908B543A6D8886B8BF0"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/91ED5DF06E9583B5F119E63C282619BB",
   "id": "91ED5DF06E9583B5F119E63C282619BB",
   "title": "Page not found · GitHub Pages",
   "type": "page",
   "url": "https://example.cypress.io/__/#/tests/integration/spec.js",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/91ED5DF06E9583B5F119E63C282619BB"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/D5DD59801FC66D80DD0238CC8C0A5A22",
   "id": "D5DD59801FC66D80DD0238CC8C0A5A22",
   "title": "Google Input Tools",
   "type": "background_page",
   "url": "chrome-extension://mclkkofklkfljcocdinagocijmpgbhab/background.html",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/D5DD59801FC66D80DD0238CC8C0A5A22"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/A8105F950E9942957743D5E83AC0F109",
   "id": "A8105F950E9942957743D5E83AC0F109",
   "title": "Tampermonkey",
   "type": "background_page",
   "url": "chrome-extension://dhdgffkkebhmkfjojejmpbldmpobfkfo/background.html",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/A8105F950E9942957743D5E83AC0F109"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/C7348ED4184DB388549B0C4239124A45",
   "id": "C7348ED4184DB388549B0C4239124A45",
   "title": "Nimbus Screenshot &amp; Screen Video Recorder",
   "type": "background_page",
   "url": "chrome-extension://bpconcjcammlapcogcnnelfmaeghhagj/background.html",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/C7348ED4184DB388549B0C4239124A45"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/7BA7E033C4954F49342F23CCCC0852C9",
   "id": "7BA7E033C4954F49342F23CCCC0852C9",
   "title": "Honey",
   "type": "background_page",
   "url": "chrome-extension://bmnlcjabgnpnenekpadlanbbkooimhnj/_generated_background_page.html",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/7BA7E033C4954F49342F23CCCC0852C9"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/BC5FA127D63765DB53FD568E3D26AD38",
   "id": "BC5FA127D63765DB53FD568E3D26AD38",
   "title": "MEGA",
   "type": "background_page",
   "url": "chrome-extension://bigefpfhnfcobdlfbedofhhaibnlghod/_generated_background_page.html",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/BC5FA127D63765DB53FD568E3D26AD38"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/5ECF032E8C18BB7ADB83F5E06985AE21",
   "id": "5ECF032E8C18BB7ADB83F5E06985AE21",
   "title": "ColorZilla",
   "type": "background_page",
   "url": "chrome-extension://bhlhnicpbhignbdhedgjhgdocnmhomnp/html/background.html",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/5ECF032E8C18BB7ADB83F5E06985AE21"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/369AE6DEC48452DED1973348DDB94F3A",
   "id": "369AE6DEC48452DED1973348DDB94F3A",
   "title": "Turn Off the Lights",
   "type": "background_page",
   "url": "chrome-extension://bfbmjmiodbnnpllbbbfblcplfjjepjdn/background.html",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/369AE6DEC48452DED1973348DDB94F3A"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/F490649DA51E8F5F2F46F46C01EC7BD7",
   "id": "F490649DA51E8F5F2F46F46C01EC7BD7",
   "title": "Destiny Item Manager Shortcut",
   "type": "background_page",
   "url": "chrome-extension://apghicjnekejhfancbkahkhdckhdagna/_generated_background_page.html",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/F490649DA51E8F5F2F46F46C01EC7BD7"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/0EDC6E35956B1396AC099251CB4561B3",
   "id": "0EDC6E35956B1396AC099251CB4561B3",
   "title": "Workona",
   "type": "background_page",
   "url": "chrome-extension://ailcmbgekjpnablpdkmaaccecekgdhlh/_generated_background_page.html",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/0EDC6E35956B1396AC099251CB4561B3"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/B300CEF27D5F7DD342C9EF06A9423FFC",
   "id": "B300CEF27D5F7DD342C9EF06A9423FFC",
   "title": "Talend API Tester - Free Edition",
   "type": "background_page",
   "url": "chrome-extension://aejoelaoggembcahagimdiliamlcdmfm/_generated_background_page.html",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/B300CEF27D5F7DD342C9EF06A9423FFC"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/52BB7BD3D24CBEB635CBED4881246A40",
   "id": "52BB7BD3D24CBEB635CBED4881246A40",
   "title": "Sortify",
   "type": "background_page",
   "url": "chrome-extension://aehmpfeibpcclkbjjkclhncmjncpebef/_generated_background_page.html",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/52BB7BD3D24CBEB635CBED4881246A40"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/9809DF795BC6DD447D3BCE2F4298675F",
   "id": "9809DF795BC6DD447D3BCE2F4298675F",
   "title": "Page not found · GitHub Pages",
   "type": "page",
   "url": "https://example.cypress.io/__/#/tests/integration/spec.js",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/9809DF795BC6DD447D3BCE2F4298675F"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/0EE49A87AB12953A0DB653DDDBF2B003",
   "faviconUrl": "https://www.google.com/images/icons/product/chrome_web_store-32.png",
   "id": "0EE49A87AB12953A0DB653DDDBF2B003",
   "title": "Web Store",
   "type": "page",
   "url": "https://chrome.google.com/webstore/search/blank%20tab?hl=en-US",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/0EE49A87AB12953A0DB653DDDBF2B003"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/A7C0BA1D396CFA7B0B8488ECDAE29A25",
   "id": "A7C0BA1D396CFA7B0B8488ECDAE29A25",
   "title": "Extensions",
   "type": "page",
   "url": "chrome://extensions/",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/A7C0BA1D396CFA7B0B8488ECDAE29A25"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/A56AF85460A6547112197CC3D9A21A09",
   "faviconUrl": "https://example.cypress.io/__cypress/static/favicon.ico",
   "id": "A56AF85460A6547112197CC3D9A21A09",
   "title": "Page not found · GitHub Pages",
   "type": "page",
   "url": "https://example.cypress.io/__/#/tests/integration/spec.js",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/A56AF85460A6547112197CC3D9A21A09"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/903254383B1EFF416FCDFAC69ACE3260",
   "faviconUrl": "https://example.cypress.io/__cypress/static/favicon.ico",
   "id": "903254383B1EFF416FCDFAC69ACE3260",
   "title": "Page not found · GitHub Pages",
   "type": "page",
   "url": "https://example.cypress.io/__/#/tests/integration/spec.js",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/903254383B1EFF416FCDFAC69ACE3260"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/4629B3D0E2096BC1C64FCBDEE2A0049F",
   "id": "4629B3D0E2096BC1C64FCBDEE2A0049F",
   "title": "about:blank",
   "type": "page",
   "url": "about:blank",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/4629B3D0E2096BC1C64FCBDEE2A0049F"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/09580A4AD37F39AB62436B8915FEA5AB",
   "id": "09580A4AD37F39AB62436B8915FEA5AB",
   "title": "about:blank",
   "type": "page",
   "url": "about:blank",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/09580A4AD37F39AB62436B8915FEA5AB"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/A532B6E3478C876E1D48FC3D1C56DA40",
   "id": "A532B6E3478C876E1D48FC3D1C56DA40",
   "title": "New Tab",
   "type": "page",
   "url": "chrome://newtab/",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/A532B6E3478C876E1D48FC3D1C56DA40"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/A10F7E36D69A568847FD83B5848F84A5",
   "id": "A10F7E36D69A568847FD83B5848F84A5",
   "title": "New Tab",
   "type": "page",
   "url": "chrome://newtab/",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/A10F7E36D69A568847FD83B5848F84A5"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/82252D73C8FC5F408F810E7D9E063D8C",
   "id": "82252D73C8FC5F408F810E7D9E063D8C",
   "title": "New Tab",
   "type": "page",
   "url": "chrome://newtab/",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/82252D73C8FC5F408F810E7D9E063D8C"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/03B4074658338C53C0496717DF701475",
   "id": "03B4074658338C53C0496717DF701475",
   "title": "New Tab",
   "type": "page",
   "url": "chrome://newtab/",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/03B4074658338C53C0496717DF701475"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/B9035B503732EC7800450602C8764834",
   "id": "B9035B503732EC7800450602C8764834",
   "title": "New Tab",
   "type": "page",
   "url": "chrome://newtab/",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/B9035B503732EC7800450602C8764834"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/E9FA2BE60E6FD86D5E8B40AB47EDFEAC",
   "id": "E9FA2BE60E6FD86D5E8B40AB47EDFEAC",
   "title": "New Tab",
   "type": "page",
   "url": "chrome://newtab/",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/E9FA2BE60E6FD86D5E8B40AB47EDFEAC"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/D4CC2550CA3707093AA3A5E11B89E20A",
   "id": "D4CC2550CA3707093AA3A5E11B89E20A",
   "title": "New Tab",
   "type": "page",
   "url": "chrome://newtab/",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/D4CC2550CA3707093AA3A5E11B89E20A"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/9F5A3FDF897387C232FD92458F5CCCE5",
   "id": "9F5A3FDF897387C232FD92458F5CCCE5",
   "title": "New Tab",
   "type": "page",
   "url": "chrome://newtab/",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/9F5A3FDF897387C232FD92458F5CCCE5"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/6B33E202822DA5781BEBE4A4A2D5307C",
   "id": "6B33E202822DA5781BEBE4A4A2D5307C",
   "title": "New Tab",
   "type": "page",
   "url": "chrome://newtab/",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/6B33E202822DA5781BEBE4A4A2D5307C"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/BD5E843B04E380AACE2133769B308097",
   "id": "BD5E843B04E380AACE2133769B308097",
   "title": "New Tab",
   "type": "page",
   "url": "chrome://newtab/",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/BD5E843B04E380AACE2133769B308097"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/1072563A0B986B5EB2EA3B6409CE3DB8",
   "id": "1072563A0B986B5EB2EA3B6409CE3DB8",
   "title": "New Tab",
   "type": "page",
   "url": "chrome://newtab/",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/1072563A0B986B5EB2EA3B6409CE3DB8"
}, {
   "description": "",
   "devtoolsFrontendUrl": "/devtools/inspector.html?ws=localhost:51298/devtools/page/511EA466B7F1FBD8756A9C0EF24C10C8",
   "id": "511EA466B7F1FBD8756A9C0EF24C10C8",
   "title": "New Tab",
   "type": "page",
   "url": "chrome://newtab/",
   "webSocketDebuggerUrl": "ws://localhost:51298/devtools/page/511EA466B7F1FBD8756A9C0EF24C10C8"
} ]

which does include about:blank target.

Then there was the following observation:

when I stopped the Canary by closing the window and pressing "Stop" in Cypress, it was still hanging around. I could again curl JSON list of targets and they were appearing
trying to start Chrome Canary from Cypress did not work - could not connect to RDP
I had to exit the Chrome Canary completely from Mac to be able to restart the Chrome Canary from Cypress and connect (the test ran successfully)

bahmutov · 2020-01-09T20:11:10Z

With above in mind, I found a way to recreate the problem as follows:

open Chrome Canary and run the test by clicking on the spec name
from Cypress click "Stop" button
Chrome Canary shuts down, but you quickly click on the spec name to start it again

After 3-6 tries I get the "cannot find CRI target" message, the following terminal output in Cypress

  cypress:server:protocol Getting WS connection to CRI on port 52765 +6s
  cypress:server:protocol CRI.List on port 52765 +311ms
  cypress:server:protocol CRI List { numTargets: 1, targets: [ { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:52765/devtools/page/2C9AF635A11925CC8A321466E32C91A5', id: '2C9AF635A11925CC8A321466E32C91A5', title: 'Sortify', type: 'background_page', url: 'chrome-extension://aehmpfeibpcclkbjjkclhncmjncpebef/_generated_background_page.html', webSocketDebuggerUrl: 'ws://localhost:52765/devtools/page/2C9AF635A11925CC8A321466E32C91A5' } ] } +91ms

But then I can in another tab do the following (I am using same port that CRI.List on port 52765 reports

/packages/server
$ node
Welcome to Node.js v12.13.0.
Type ".help" for more information.
> var CRI = require('chrome-remote-interface')
> CRI.List({host: '127.0.0.1', port: 52765}).then(console.log)
[
  {
    description: '',
    devtoolsFrontendUrl: '/devtools/inspector.html?ws=127.0.0.1:52765/devtools/page/D9E761887F50AF1FD7F22C6565016729',
    id: 'D9E761887F50AF1FD7F22C6565016729',
    title: 'about:blank',
    type: 'page',
    url: 'about:blank',
    webSocketDebuggerUrl: 'ws://127.0.0.1:52765/devtools/page/D9E761887F50AF1FD7F22C6565016729'
  },
...

So it seems to me CRI.List can return "too early" and we should retry it until we do find about:blank

bahmutov · 2020-01-09T20:39:44Z

I have added a retry to CRI.List function and it just worked - notice at first a single target, then the full list of targets

adding React DevTools extension from /Users/gleb/git/cypress-test-tiny/4.2.1_0
  cypress:server:protocol Getting WS connection to CRI on port 55358 +23s
  cypress:server:protocol CRI.List on port 55358 +307ms
  cypress:server:protocol CRI List { numTargets: 1, targets: [ { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:55358/devtools/page/F17ED93D59773E63F289058D201626AE', id: 'F17ED93D59773E63F289058D201626AE', title: 'Sortify', type: 'background_page', url: 'chrome-extension://aehmpfeibpcclkbjjkclhncmjncpebef/_generated_background_page.html', webSocketDebuggerUrl: 'ws://localhost:55358/devtools/page/F17ED93D59773E63F289058D201626AE' } ] } +90ms
  cypress:server:protocol CRI.List on port 55358 +1s
  cypress:server:protocol CRI List { numTargets: 11, targets: [ { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:55358/devtools/page/7A79443ABF9802D8D98349F5BB3C62D5', id: '7A79443ABF9802D8D98349F5BB3C62D5', title: 'about:blank', type: 'page', url: 'about:blank', webSocketDebuggerUrl: 'ws://localhost:55358/devtools/page/7A79443ABF9802D8D98349F5BB3C62D5' }, { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:55358/devtools/page/A2849D5CD61143AA40DB1DD2DEA203F1', id: 'A2849D5CD61143AA40DB1DD2DEA203F1', title: 'Tampermonkey', type: 'background_page', url: 'chrome-extension://dhdgffkkebhmkfjojejmpbldmpobfkfo/background.html', webSocketDebuggerUrl: 'ws://localhost:55358/devtools/page/A2849D5CD61143AA40DB1DD2DEA203F1' }, { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:55358/devtools/page/D6D602AD35100720AA1078AED286C0E5', id: 'D6D602AD35100720AA1078AED286C0E5', title: 'Nimbus Screenshot &amp; Screen Video Recorder', type: 'background_page', url: 'chrome-extension://bpconcjcammlapcogcnnelfmaeghhagj/background.html', webSocketDebuggerUrl: 'ws://localhost:55358/devtools/page/D6D602AD35100720AA1078AED286C0E5' }, { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:55358/devtools/page/7A340419A2188FA079681FD6233B4469', id: '7A340419A2188FA079681FD6233B4469', title: 'Honey', type: 'background_page', url: 'chrome-extension://bmnlcjabgnpnenekpadlanbbkooimhnj/_generated_background_page.html', webSocketDebuggerUrl: 'ws://localhost:55358/devtools/page/7A340419A2188FA079681FD6233B4469' }, { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:55358/devtools/page/5F03F9965DA48358A42DF90D82387923', id: '5F03F9965DA48358A42DF90D82387923', title: 'MEGA', type: 'background_page', url: 'chrome-extension://bigefpfhnfcobdlfbedofhhaibnlghod/_generated_background_page.html', webSocketDebuggerUrl: 'ws://localhost:55358/devtools/page/5F03F9965DA48358A42DF90D82387923' }, { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:55358/devtools/page/7A9D7645B6C162553B121F1BC70EADE7', id: '7A9D7645B6C162553B121F1BC70EADE7', title: 'ColorZilla', type: 'background_page', url: 'chrome-extension://bhlhnicpbhignbdhedgjhgdocnmhomnp/html/background.html', webSocketDebuggerUrl: 'ws://localhost:55358/devtools/page/7A9D7645B6C162553B121F1BC70EADE7' }, { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:55358/devtools/page/63D543F695666E9E4F23C3CFAFA0BAE0', id: '63D543F695666E9E4F23C3CFAFA0BAE0', title: 'Turn Off the Lights', type: 'background_page', url: 'chrome-extension://bfbmjmiodbnnpllbbbfblcplfjjepjdn/background.html', webSocketDebuggerUrl: 'ws://localhost:55358/devtools/page/63D543F695666E9E4F23C3CFAFA0BAE0' }, { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:55358/devtools/page/A725760B0BADC81635642277BDBCB66B', id: 'A725760B0BADC81635642277BDBCB66B', title: 'Destiny Item Manager Shortcut', type: 'background_page', url: 'chrome-extension://apghicjnekejhfancbkahkhdckhdagna/_generated_background_page.html', webSocketDebuggerUrl: 'ws://localhost:55358/devtools/page/A725760B0BADC81635642277BDBCB66B' }, { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:55358/devtools/page/2ACC2A5A10E7073F95918834063E884D', id: '2ACC2A5A10E7073F95918834063E884D', title: 'Workona', type: 'background_page', url: 'chrome-extension://ailcmbgekjpnablpdkmaaccecekgdhlh/_generated_background_page.html', webSocketDebuggerUrl: 'ws://localhost:55358/devtools/page/2ACC2A5A10E7073F95918834063E884D' }, { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:55358/devtools/page/58ED17DE9EA32B8E57EBAE966A3E80BA', id: '58ED17DE9EA32B8E57EBAE966A3E80BA', title: 'Talend API Tester - Free Edition', type: 'background_page', url: 'chrome-extension://aejoelaoggembcahagimdiliamlcdmfm/_generated_background_page.html', webSocketDebuggerUrl: 'ws://localhost:55358/devtools/page/58ED17DE9EA32B8E57EBAE966A3E80BA' }, { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:55358/devtools/page/F17ED93D59773E63F289058D201626AE', id: 'F17ED93D59773E63F289058D201626AE', title: 'Sortify', type: 'background_page', url: 'chrome-extension://aehmpfeibpcclkbjjkclhncmjncpebef/_generated_background_page.html', webSocketDebuggerUrl: 'ws://localhost:55358/devtools/page/F17ED93D59773E63F289058D201626AE' } ] } +108ms
  cypress:server:protocol found CRI target { description: '', devtoolsFrontendUrl: '/devtools/inspector.html?ws=localhost:55358/devtools/page/7A79443ABF9802D8D98349F5BB3C62D5', id: '7A79443ABF9802D8D98349F5BB3C62D5', title: 'about:blank', type: 'page', url: 'about:blank', webSocketDebuggerUrl: 'ws://localhost:55358/devtools/page/7A79443ABF9802D8D98349F5BB3C62D5' } +1ms
GET /__/ 200 0.849 ms - -
  cypress:server:browsers browser opened +2s

jennifer-shehane · 2020-01-10T05:50:03Z

@bahmutov Since you've narrowed it down to Mac Canary, thought you may revisit the theory of this being caused by this Mac Chrome bug https://bugs.chromium.org/p/chromium/issues/detail?id=994085 which was initially suspected as the cause of this error in NeuraLegion/cypress-har-generator#17 (comment)

erezrokah · 2020-01-10T11:55:35Z

@bahmutov Since you've narrowed it down to Mac Canary, thought you may revisit the theory of this being caused by this Mac Chrome bug https://bugs.chromium.org/p/chromium/issues/detail?id=994085 which was initially suspected as the cause of this error in NeuraLegion/cypress-har-generator#17 (comment)

Hi @jennifer-shehane this has been happening for me on GitHub Actions on Ubuntu latest (and on also on my local Mac) so I'm not sure it is Mac specific. Also - only happening in Chrome headless mode and only when changing specs (never when running a single spec). I've noticed the Chrome instance stays up and I have to kill all instances to get the tests to work again at all.

bahmutov · 2020-01-10T14:30:57Z

I don't see how disabling GPU affects it, but who knows? It could be a combination of headless Chrome and environment. Just to see if we can recreate this I have added headless Chrome test runs to our repos

recipes on CircleCI add headless chrome job on circleci cypress-example-recipes#400
- got a failing job https://circleci.com/gh/cypress-io/cypress-example-recipes/56420 with same error could not find CRI target, so the good news is this is not just GitHub Action, but CircleCI as well
- this is flaky, most times it passes https://circleci.com/gh/cypress-io/workflows/cypress-example-recipes/tree/test-ci-headless-chrome

bahmutov · 2020-01-10T14:37:21Z

Also added Chrome + Chrome headless test runs inside GitHub Actions in cypress-io/cypress-example-kitchensink#346 to observe

cypress-bot · 2020-01-13T15:02:12Z

The code for this is done in cypress-io/cypress#6133, but has yet to be released.
We'll update this issue and reference the changelog when it's released.

xdumaine · 2020-01-24T03:35:14Z

I'm to the point that I cannot run cypress on my mac, because I get this error so constantly. Any idea when this will be released? downgrading cypress didn't fix it.

jennifer-shehane · 2020-01-24T10:50:04Z

@xdumaine We release every 2 weeks - so this should be released today (1/24/20) barring no complications with the release.

limonte · 2020-01-24T15:58:14Z

Friday releases. Classic 😆

cypress-bot · 2020-01-24T20:16:33Z

Released in 3.8.3.

This comment thread has been locked. If you are still experiencing this issue after upgrading to
Cypress v3.8.3, please open a new issue.

limonte changed the title ~~could not find CRI target~~ Error: could not find CRI target Dec 27, 2019

limonte changed the title ~~Error: could not find CRI target~~ Failed to connect to Chrome, retrying in 1 second (attempt 18/32) Error: could not find CRI target Dec 27, 2019

limonte added a commit to sweetalert2/sweetalert2 that referenced this issue Dec 27, 2019

chore: disable cypress tests for now

20756d3

re-enable when cypress-io/cypress#6053 is fixed

limonte added a commit to sweetalert2/sweetalert2 that referenced this issue Dec 27, 2019

chore: disable cypress tests for now

f89a4a8

re-enable when cypress-io/cypress#6053 is fixed

jennifer-shehane added the stage: needs information Not enough info to reproduce the issue label Dec 30, 2019

jennifer-shehane changed the title ~~Failed to connect to Chrome, retrying in 1 second (attempt 18/32) Error: could not find CRI target~~ Error: could not find CRI target / Failed to connect to Chrome Dec 30, 2019

stefee mentioned this issue Jan 5, 2020

could not find CRI target - Headless Chrome #6091

Closed

jennifer-shehane mentioned this issue Jan 9, 2020

Chrome headless fails with "Error: could not find CRI target" #5966

Closed

bahmutov mentioned this issue Jan 9, 2020

retry CRI.List when connecting to the browser #6133

Merged

2 tasks

cypress-bot bot added stage: work in progress and removed stage: needs information Not enough info to reproduce the issue labels Jan 9, 2020

bahmutov self-assigned this Jan 9, 2020

cypress-bot bot added stage: needs review The PR code is done & tested, needs review and removed stage: work in progress labels Jan 9, 2020

bahmutov mentioned this issue Jan 10, 2020

add headless chrome github action cypress-io/cypress-example-kitchensink#346

Merged

bahmutov mentioned this issue Jan 10, 2020

add headless chrome job on circleci cypress-io/cypress-example-recipes#400

Merged

bahmutov assigned flotwig Jan 10, 2020

erezrokah mentioned this issue Jan 12, 2020

Feat: editorial workflow bitbucket gitlab decaporg/decap-cms#3014

Merged

6 tasks

bahmutov closed this as completed in #6133 Jan 13, 2020

cypress-bot bot added stage: pending release and removed stage: needs review The PR code is done & tested, needs review labels Jan 13, 2020

jennifer-shehane added type: bug browser: chrome labels Jan 14, 2020

limonte mentioned this issue Jan 22, 2020

Add onDestroy callback sweetalert2/sweetalert2#1872

Merged

cypress-bot bot removed the stage: pending release label Jan 24, 2020

cypress-bot bot locked as resolved and limited conversation to collaborators Jan 24, 2020

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Error: could not find CRI target / Failed to connect to Chrome #6053

Error: could not find CRI target / Failed to connect to Chrome #6053

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Error: could not find CRI target / Failed to connect to Chrome #6053

Error: could not find CRI target / Failed to connect to Chrome #6053

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Current behavior:

Steps to reproduce: (app code and test code)

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