This is easily testable by using the following code in iOS and opening the same url (https://janus.conf.meetecho.com/videocalltest.html) in the desktop browser (tested with chrome), clicking Start, registering a name, and calling the other side. let config = WKWebViewConfiguration() config.allowsInlineMediaPlayback = true let webview = WKWebView(frame: .zero, configuration: config) webview.load(URLRequest(url: URL(string: "https://janus.conf.meetecho.com/videocalltest.html")!))

Mic background still doesn't work for me with iOS 15.1 (beta 3). I noticed that "Mic mode" in the control center changes from "Standard" to "Off when the app goes to the background and I'm not able to turn it back to standard (unless returning the app to the foreground).