Sign in sometimes fails

Signing in appears to fail intermittently. Occasionally, I am able to successfully sign in, but most often I fail to do so.

Expected behavior

When signing in via GitLab, I should be "redirected" from the GitLab.com iframe to the Plugin UI (so that I can continue with my upload)

Actual behavior

Upon signing in, I see the TODO list page of GitLab.com

Steps to reproduce

1. Download and install the plugin
2. Open the plugin
3. Attempt to sign in
4. Observe. Sometimes, you will remain on the TODO list page of GitLab.com

Possible fixes

• I suspect the access token given in the hash (#) of the redirection url after signing in isn't being parsed correctly (perhaps due to some race condition)