Text to speech not working

[perzeuss]

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Dify version

0.15.3

Cloud or Self Hosted

Cloud

Steps to reproduce

1. Create empty chatflow
2. Open the UI to enable tts feature
3. click the play button for voice example

Can also be reproduced by clicking the play icon button on normal chat messages.

✔️ Expected Behavior

Dify plays audio file

❌ Actual Behavior

Infinite loading spinner Console logs:

Uncaught DOMException: MediaSource.addSourceBuffer: Type not supported in MediaSource
Cannot play media. No decoders for requested formats: audio/mpeg