SUP-2939 #comment Support CORS headers for AJAX requests #time 1d

Add withCredntials support for ajax request via vast settings:
“enableCors”.
Setting is by default true. If server returns
Access-Control-Allow-Origin header set to “*” then setting must be set
to false, otherwise browser will prevent response from reaching client
code.
Set uppercase CORS notation
Merge pull request #1112 from kaltura/SUP-2939

SUP-2939 #comment Support CORS headers for AJAX requests #time 1d