I want to use audio-tags to play opus-files:
<audio controls>
<source src="espeak.opus" type="audio/ogg">
Your browser does not support the audio element.
</audio>
Works locally but with Firefox it does not work on the server: https://tools.wmflabs.org/tts-comparison/
I've set the mimetypes, and also tried Ogg-Vorbis. (opus and Ogg-Vorbis are both supported by Firefox). Works in Chrome.
What am I missing?