Might need to scroll the page up. Also the mobile site is still very buggy.

I do see the boost when I scroll it up, can press boost while holding up.

What browser is that?

Apple iOS

That is messy. If you click the album art on the now playing bar at the bottom it brings up a full screen player with a better boost window. PWAs on iOS are tricky but I just need to clean it up.

"should" be fixed now. Thanks for the feedback.