Bug Report: Unidentified error messages and pages failing to fully load

First off I want to say great work on the 4.2 update! It’s been great for the most part, but I’ve run into some issues after the update took effect. I’ve been getting this message over and over whenever I enter a game or play a move in my correspondence matches:

Also, every now and then I see this when looking through games:

Refreshing the page doesn’t usually help. I tend to have to logout and login again to make it go away. Help on how to resolve this would be much appreciated. Thanks!

What browser and os?

Browser: Google Chrome
OS: Windows 7