As I understand, WebGL is only supported in WebView in Android Lollipop (updating the WebView component in the Play Store), and newer versions (no Play Store update required).
However, I have an emulator using Android 7.1.1, and WebGL is not working. http://webglreport.com says "This browser supports WebGL 1, but it is disabled or unavailable.". I have also tried an Android 6.0 emulator, with the same result.
WebGL works fine in the emulator when using Chrome, but not in a WebView.
WebGL works fine in a WebView in a physical 6.0 phone.
What could be the reason why WebGL is not working in the same emulator, when using a WebView?