I have just had to revert my upgrade to 3.1.1 to 3.0.5 due to an issue I was having with the admin area. It would allow me to log in fine and click on the security section and files, but when I went to edit the pages - I would click on one, then another - and the loading icon would show and would freeze there. The url is correct, but the content didn't load - I had to refresh the page.
There were a number of errors being presented;
1. $ is not defined
2. /security/ping was not functioning
3. The admin area would time out and ask me to log in again.
OS is OSX under WAMP
Browser is chrome
Anybody else having issues with the 3.1.1 release?