| (function(){ |
| if(navigator.userAgent.toLowerCase().indexOf('firefox') > -1){ |
| |
| // Work around https://bugzilla.mozilla.org/show_bug.cgi?id=1282142 |
| // Firefox does not correctly reject the Clear Key session types it does not support |
| var _requestMediaKeySystemAccess = navigator.requestMediaKeySystemAccess.bind( navigator ); |
| |
| navigator.requestMediaKeySystemAccess = function( keysystem, configurations ) |
| { |
| if ( keysystem !== 'org.w3.clearkey' ) return _requestMediaKeySystemAccess( keysystem, configurations ); |
| |
| var supported_configurations = configurations.filter( function( c ) { |
| |
| return !c.sessionTypes || ( c.sessionTypes.length === 1 && c.sessionTypes[ 0 ] === 'temporary' ); |
| |
| } ); |
| |
| if ( supported_configurations.length === 0 ) return Promise.reject( new DOMException( 'None of the requested configurations were supported.' ) ); |
| |
| return _requestMediaKeySystemAccess( keysystem, supported_configurations ); |
| } |
| } |
| }()); |
