SUMMARY Since yesterday, I can't play or pause on Udemy, but I can still skip forward STEPS TO REPRODUCE 1. Go to udemy.com, and play a video (you can play a preview for a course, you don't need an account). Example: https://www.udemy.com/course/advanced-css-and-sass/ 2. Use dbus commands to play or pause the video 3. Nothing happens. OBSERVED RESULT The player does nothing when using media keys on my keyboard, or sending dbus commands using the terminal. document.querySelector('video').play() in the browser console shows a promise with state "pending". Nothing happens. document.querySelector('video').pause() returns undefined. EXPECTED RESULT The player plays/pauses. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Arch 5.7.9-arch1-1 KDE Plasma Version: N/A KDE Frameworks Version: 5.72.0-1 Qt Version: qt5-base: 5.15.0-4 ADDITIONAL INFORMATION I'm not running KDE plasma, only bspwm with the plasma-browser-integration package. I'd like to know if this is something on their end or on my end, so can someone test this? Thanks.
Given directly calling it through developer console also doesn't work, appears to be a change/breakage on their side. P-b-i also just calls play()/pause() on the video element unless the page registered a Media Session callback, which this page doesn't. It also doesn't work with ublock and p-b-i disabled, so I'm certain this is a change on that page.
I just found that if I send dbus commands very quickly, the video plays while stuttering, so it definitely can control the video. I did that with this command: watch -n 0.01 qdbus org.mpris.MediaPlayer2.plasma-browser-integration /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Play