Ask HN: Did Google have a limited OAuth outage this morning?

Doing some work this morning, Google login via OAuth was working fine in production, but in my local development environment (http://localhost) it was suddenly broken. Code, env, and cloud config were all (AFAIK) unchanged since it had been previously working.

After quite a bit of screwing around, I set up certs and DNS, changed to a public domain + https for all locally running services, everything started working. Just reverted my changes to http://localhost -- it's still working.

Wondering if they did something that only affected http://localhost -- I know they’ve deprecated the old API, maybe this is part of the plan to sunset accidentally rolled out early. Another possibility is that nothing I did had any effect and OAuth was just a bit screwed up until it wasn't. Finally it is of course possible this was something unrelated to Google that happened locally, I've got my code and config pretty locked down, but it's possible.

Anyone else see something similar?