Can't get TuneIn radio stations to work through the Http \ https proxy. I had to add a packet filter instead but why? Traffic Monitor is not showing any denied connections, logging is on.
Fireware 12.3.1 U1 m400
This one works for me - the only one that I tried - via my HTTPS proxy:https://tunein.com/radio/Alt-Hits-s249990/
I do not block any Content Types on the HTTP proxy action which is listed in my HTTPS proxy action.
I found that if I uncheck "Enable Gateway AntiVirus" on my HTTP proxy, then Tunein works fine. When that is checked, no stations work including the one you posted.
Narrowed it down some more. If AV Scan is enabled for URL Paths None Matched or Content Types If matched, then TuneIn radio stations do not work.
I have AV scan on Content Types - None matched.
I can't get XTM to log the Content Type being used here - it could be audio/* which I Allow and no not AV scan
I could not scan audio/* and not scan URL paths but those are scanned by default when Gateway AV is enabled so it seems like I shouldn't need to do that. It seems like a bug. Tested on 12.4, still having the same issue.
Then open a support incident on this.
Exact same problem with TuneIn on proxy with Gateway AV enabled, T-35W (error exists through versions 12.1-12.4). No errors in log even with debugging log level. When AV is disabled it works through proxy. Did you make a support case? If so, what was wrong?
ok, thanks for the feedback. Was afraid that you were going to say that But hey, there's only 100k stations on TuneIn. So let's start typing in exceptions
Guess i'll have to use specific proxy-rules without AV on those devices in questions. My case Sonos and Google Home units only. Thanks again!
Adding *.musicradio.com to HTTP Proxy Exceptions, this is what showed up the site when playing Tunein thru Sonos. Once I added the exception I was able to re-Enable Gateway AV. Tunein radio thru Sonos now worked.
I found this topic after looking on the internet, I have same issue that the Tunein radio sometime doesn't work. If I understand correctly is that some channel does works and another one not en the only solution is to use whitelist in http proxy?
Is there any update/fixed
I believe the issue still exists on 12.5.2. You basically need to try loading each of your stations to see what url they contact and add the proxy exceptions.
I had the same problem for the ABC Lounge Jazz internet radio.
And I have been able to find and fix my connection problem.
Somehow, in my firewall I had to configure a HTTP Proxy Exception (within the Default-HTTP-Client, that is influenced by the Gateway AV).
Go to Firewall > Proxy Action > Default-HTTP-Client >  > HTTP Proxy Exceptions > add and save the domain that you like to allow as exceptions, alike: [*.openstream.co] in my case.
Now it works like before.
Also on/via Sonos.
The way I fixed this without turning off AV was to add FQDN *.tunein.com to be allowed through the HTTP and HTTPS policy in Firewall Policy Manager