Thread:Extension talk:MultimediaViewer/CORS bug/reply (2)

< HTTP/1.1 200 OK < Server: nginx < Date: Wed, 22 Apr 2015 18:35:32 GMT < Content-Type: image/jpeg < Content-Length: 35123 < Last-Modified: Thu, 04 Sep 2014 10:21:33 GMT < Connection: keep-alive < ETag: "54083d2d-8933" < X-Powered-By: PleskLin < Accept-Ranges: bytes So as you can see your image does not have the header. But it does need one. So whatever you need to do to convince your webserver to add that header to those requests... You probably want to read: http://wiki.nginx.org/LikeApache-htaccess however

$wgCrossSiteAJAXdomains is only relevant for api requests.