Code review comment for lp:~mardy/webbrowser-app/per-account-dir2

The following autopilot test is broken:

    webapp_container.tests.test_redirection_pattern.WebappContainerRedirectionPatternTestCase.test_browse_to_redirection_pattern_url

(it wasn’t caught by the CI job because it doesn’t run the webapp_container test suite yet, but I’ve asked CI to add it).