Page flip in notes pop-up doesn't propagate

[seanho00]

Standard use case: notes screen on multiplex master, on mobile. Swiping the "current slide" pane to change slides does not consistently change the "next slide" pane, nor the main window of the master, nor any client views. A workaround is to switch to the main window of the master, then the slide change event is propagated.

Possibly related to #64 #44

[seanho00]

Maybe a timeout with recent versions of socket.io? Page flipping works if keep flipping, but not if wait on a slide for a couple minutes (e.g., during live presentation). Could also be an Android power-saving thing dropping the connection; try with master on a desktop to debug.

[seanho00]

Does not seem to reproduce on desktop; investigate Android Chrome power-saving sleep of inactive tabs.

[seanho00]

Android Chrome suspends background tabs who have not rendered in 5min, unless they are playing audio, have a pending fetch keepalive, or have an active ServiceWorker or SharedWorker.

https://www.xda-developers.com/google-chrome-android-stop-background-tabs/