ajax request

I am searching for part of a username and copying the returned list to a select field just as example and am getting error 400 Bad Request on ajax call. Did not find any clear solution on old threads. Can someone help me to solve that? AJAX: function search() { var user =...

Currently I am watching the video series "Building with XenForo 2" The videos are really well done and easy to follow. However, I now have a problem. The things that have to do with AJAX requests don't work. Specifically, for me it's adding notes or opening the note editor in the overlay. For...