Coverage remained the same at 100.0% when pulling 15fe20006c2a2f9208657c9dfe79948e8d87baa9 on escapewindow:token-retry into e6a4a400dc4826077dad8764328c05c3a8a7684a on mozilla-releng:master.
@escapewindow also would be good to see tests that ensure that a other tokens are checked in each of these exception cases. (not sure how hard that is to add into the test suite, or if you feel its overkill)
This fix should allow us to request tokens from the next suitable server, if and when we hit a network issue requesting a token.
@JohanLorenzo do you or @Callek feel comfortable reviewing this? If not we can wait for the Canadians to get back online :)