System and IINA version:

• macOS 10.13.6
• IINA 1.0.0-beta2

Expected behavior:
It would be nice if IINA switched to music mode when playing music or podcasts from a URL.

Actual behavior:
IINA doesn't switch to music mode, because the checkCurrentMediaIsAudio function explicitly returns .notAudio for URLs. I didn't see an explanation in the commit messages for why this is the case, and when I comment the guard it seems to work as expected.

Steps to reproduce:

1. Open a URL, for example http://9to5mac.com/wp-content/uploads/sites/6/2018/07/9to5Mac-Daily-07-20-2018.mp3.

How often does this happen?
Always