I'm trying to convert a image to a base64 string and put it as source into an img tag. The picture is stored on a other subdomain then the scripts. So i put this in my .htaccess file to ensure, the access is allowed <ifModule mod_headers.c> Header set Access-Control-Allow-Origin http://xxx.mydomain.com Header set Access-Control-Allow-Credentials true </ifModule> It's working pretty well on Desktop