Oh, I’m using your plugin (actually the designer is) and I was unsure because it was returning HTTP200, but it has the ‘maintenance’ mode which returns 503, great.
Oh, I see.. 304 is only for people which have a cached version of the page, right?
So, 503 it is.
Thanks!
I’m having a similar issue, not images are being generated after updating.
EDIT: Nevermind, my case was definitely a server issue (not debugged yet).
You must insert the folder ID, which is this part of the url:
https://drive.google.com/#folders/0B7RTV3vByAbQRlJMUWdIbUR6WXc
folder id = 0B7RTV3vByAbQRlJMUWdIbUR6WXc
