/forum/admin.php?widgets/html.0/save:1 Failed to load resource: the server responded with a status of 403 (Forbidden)
core-compiled.js?_v=fcf3d3dc:42 PHP: <!DOCTYPE html>
It appears that Twitter is denying access to the resource requested by your server. I don't think this is a XenForo issue but rather an authorization issue from Twitter.
How do you go about integrating Twitter into your widget?
Have you created an API on Twitter developer website ?
@nicodak thanks! It was actually a plugin I had on wordpress called "Wordfence" I had to disable it. I will have to figure out later how to "re-enable" it to protect WP while allowing me to use the Twitter Feed on XF.