Due to security reason, some platform does not allow to access files on apache web server that is super great feature in order not to make server in-stable, but some device having no domain connection may have no solution when requiring in communicating with such kind of servers. To resolve that issue, you will need to enable CORS in httpd.conf
OPTION 1. Enable it by adding below lines to your httpd.conf
LoadModule headers_module modules/mod_headers.so Header set Access-Control-Allow-Origin: * Header set Access-Control-Allow-Headers: * Header set Access-Control-Allow-Methods: *
OPTION 2. Adding MIME Type at .htaccess
AddType text/vtt .vtt