Ticket #42919: 42919.diff

src/wp-includes/functions.php

@@ -2555 +2555 @@
                         'vtt'                          => 'text/vtt',
                         'dfxp'                         => 'application/ttaf+xml',
                         // Audio formats.
+                        'aac'                          => 'audio/aac',
                         'mp3|m4a|m4b'                  => 'audio/mpeg',
                         'ra|ram'                       => 'audio/x-realaudio',
                         'wav'                          => 'audio/wav',