Webview: Background video not working, video auto-plays fullscreen on iOS

Hey all! First-time poster. Long-time Bubble dev, first time Thunkable dabbler.

I have a pretty complex webapp that runs great on Mobile Safari and Chrome. However, video behaves differently on Thunkable’s webview. Fistly, background video doesn’t play. Smaller on-screen videos that should autoplay inline, go fullscreen immediately.

I’m using the correct HTML on my webapp to make it autoplay on mobile devices:
<video autoplay playsinline muted loop>

Is Thunkable’s WebView updated? As of iOS 10 I believe that video was allowed to play inline on web.

Is there a trick to this?

Thanks for helping a newbie out!

Bump. Would really love help with this. Thanks guys!