The stream embed url’s muted flag does nothing until you’ve muted or unmuted any stream using the player’s controls.
The muted flag should work without having to manually mute or unmute first.
Open Chrome Incognito or Firefox Private
Navigate to https://twitch.tv
Mute any live stream
Open a new tab
Navigate to any live stream embed url with the flag &muted=false (e.g. https://player.twitch.tv/?channel=gamesdonequick&controls=false&muted=false). The channel will be muted and the flag does nothing.
Go back to the first tab and unmute the channel
On the second tab, flip the muted flag back and forth. The query parameter now works correctly.
Any ideas why this is happening in Chrome and Firefox? I’m not using any browser addons and I can reproduce the bug on multiple devices.