Karma failure on master

Job #204857153 failed for 02877eea:

SUMMARY:
✔ 8653 tests completed
✖ 2 tests failed

FAILED TESTS:
  Notes
    postComment & updateComment
      ✖ should show flash error message when comment failed to be updated
        Chrome
      Failed: Test is running too long!
          at webpack:///builds/gitlab-org/gitlab-ee/spec/javascripts/test_bundle.js:113 <- spec/javascripts/test_bundle.bundle.js:1984152:10

    postComment with Slash commands
      ✖ should remove slash command placeholder when comment with slash commands is done posting
        Chrome
      Expected 'foofoo' to equal 'foo'.
          at webpack:///builds/gitlab-org/gitlab-ee/spec/javascripts/notes_spec.js:576 <- spec/javascripts/test_bundle.bundle.js:1948276:65

TOTAL: 2 FAILED, 8653 SUCCESS