sagews: unable to play wav file in markdown

[haraldschilly]

Given you have a soundfile like sound.wav in the same directory as your sagews file:

This markdown snippet shows the html5 audio player, but the URL to the file isn't converted to point to the raw server and hence it can't play the file.

%md
<audio controls=true src="sound.wav"/>

[williamstein]

Tagging this as wontfix, because it will be fixed indirectly by creating a sage worksheet style mode (and kernel) for Jupyter notebooks. That will be #6374.

In Jupyter exactly the above does work fine in a markdown cell. Confirm with a sound file from https://www2.cs.uic.edu/~i101/SoundFiles/