Recently (as in, the last few hours - however, it may have been broken for a few days), I've been unable to login via Stack Exchange for a third party application with Stack Exchange's OAuth support. When attempting to login, I'm presented with the following error screen:
Transcription of the error page:
Application Login Failure
An error occurred while login into an application.
error description: OAuth request must be over HTTPS
Note that the URL is HTTPS, and so is the
I've reproduced this on two independently developed applications and on two distinct networks (my work machine, and mobile).