# Karma test with SauceLabs

**URL:** <https://discuss.circleci.com/t/karma-test-with-saucelabs/2512>\
**Category:** Build Environment\
**Created:** [March 4, 2016, 9:35pm UTC](https://discuss.circleci.com/t/karma-test-with-saucelabs/2512 "2016-03-04T21:35:31Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![epoberezkin](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/epoberezkin/32/1895_2.png) [@epoberezkin](https://discuss.circleci.com/u/epoberezkin)\
**Post date:** [March 4, 2016, 9:35pm UTC](https://discuss.circleci.com/t/karma-test-with-saucelabs/2512/1 "2016-03-04T21:35:31Z")

</div>

I am trying to run karma test on SauceLabs using karma-sauce-launcher

[https://circleci.com/gh/epoberezkin/ajv/32](https://circleci.com/gh/epoberezkin/ajv/32)

circle.yml:

```auto
machine:
  node:
    version: 4

dependencies:
  post:
    - wget https://saucelabs.com/downloads/sc-latest-linux.tar.gz
    - tar -xzf sc-latest-linux.tar.gz

test:
  override:
    - cd sc-*-linux && ./bin/sc --user $SAUCE_USERNAME --api-key $SAUCE_ACCESS_KEY --readyfile ~/sauce_is_ready:
        background: true

    - while [! -e ~/sauce_is_ready]; do sleep 1; done

    - scripts/prepare-tests
    - karma start karma.sauce.js

  post:
    - killall --wait sc # wait for Sauce Connect to close the tunnel

```

All configured browsers show this error:

```auto
ERROR [launcher.sauce]: Can not start chrome
Failed to start Sauce Connect:
Sauce Connect could not establish a connection.
Please check your firewall and proxy settings.

```

The same happens when I start via ssh

I tried putting tunnelIdentifier (the one that sauceconnect logged) into karma.conf.js file, but it didn’t change anything:

```auto
// ...
  config.set({
    // ...
    sauceLabs: {
      testName: 'Ajv',
      connectOptions: {
        tunnelIdentifier: 'db12b5cda32d478d99f0bddd98b27d49'
      }
    },
    // ...
  });
// ...

```

---

<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/circleci/original/3X/5/1/511608acda8e85906e15909b57bd0a46c1dbe291.png) [@system](https://discuss.circleci.com/u/system)\
**Post date:** [June 18, 2018, 11:38am UTC](https://discuss.circleci.com/t/karma-test-with-saucelabs/2512/2 "2018-06-18T11:38:04Z")

</div>