We're not proposing that it replace JRemote.
Sorry, you had posted a message a few weeks ago saying something to the effect of: the original developer of JRemote having left, leaving you with a codebase that you aren't familiar with.
There haven't been any updates to JRemote for a long time, except for fixes for serious bugs, so it seemed like Panel was being built to replace it.
I've recently been having a lot of issues with playback via JRemote so I thought I would give Panel a serious try, but this is a dealbreaker out of the gate.
Did you try another browser? Or search the browser settings?
It isn't Panel that is doing the playback. It's the browser.
Everything on iOS is just a shell for Safari, and it doesn't have any settings which affect this.
Using the "add to homescreen" option in Safari is the only way to display Panel fullscreen like an 'app' rather than the viewport being cut down significantly by all the browser UI.
I see that in Safari itself I can switch to another app and the current song will continue - though it stops after one track. With it added to the homescreen, playback stops immediately.
JRemote, being a native app, allows indefinite background audio playback (when it's working).