HTTP audio stream plays fine, but HTTPS doesn't
Sorry for the sub-optimal title, I didn't know how to describe the issue better.
So we're talking about a web radio, and the issue is very easy to reproduce:
$ gst-launch-1.0 playbin uri="http://streaming.exclusive.radio/er/franksinatra/icecast.audio" # ← works
$ gst-launch-1.0 playbin uri="https://streaming.exclusive.radio/er/franksinatra/icecast.audio" # ← doesn't work
When using https, it's kinda funny, gst-launch tries to play a video instead of an audio stream. But it might as well just hang.
I tried to paste this URL in Firefox 112, and it plays just fine. VLC can also play it. So it's probably a bug in GStreamer?
Those tests were done on Debian Sid, with GStreamer 1.22, and libsoup 2.74.3-1 / 3.2.2-2 (I suppose gst-launch picks libsoup3).