Warning due to "fake play"

[rozbb]

Browser: All browsers

Description: Whenever playing an article from the queue, an warning shows up in the console, saying something like

HTTP “Content-Type” of “application/x-unknown-content-type” is not supported. Load of media resource blob:<base_url>/75fe7bcf-6205-4786-9c1a-9725da54a14a failed.

This is because the fake_play() function attempts to play an empty blob. The reason for that is because Safari requires an immediate play() action after a button click in order to permit future play()s without user interaction. So the button click handler calls play() immediately on invalid audio before loading the real audio.

Notes: A fix for this might be to play an valid, but empty MP3 file. I've tried this and couldn't get it to work for the life of me.