m3u8 files can be played on iOS but Android gives error

## System info

Issue occurs on: Android
Plugin version: 0.3.11
Flutter doctor output:

```
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel beta, 1.22.1, on Mac OS X 10.15.7 19H2, locale en-US)

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
[✓] Xcode - develop for iOS and macOS (Xcode 12.0.1)
[✓] Chrome - develop for the web
[!] Android Studio (version 4.0)
✗ Flutter plugin not installed; this adds Flutter specific functionality.
✗ Dart plugin not installed; this adds Dart specific functionality.
[✓] VS Code (version 1.50.0)
[✓] Connected device (3 available)

! Doctor found issues in 1 category.
```

## Steps to Reproduce

1.
```
WebviewScaffold(
url: "http://cdn.smartstream.video/smartstream-us/channelwinlive/channelwinlive/playlist.m3u8",
));
```
Above code works perfectly in iOS but not in Android

Output in Android:


Comienza reproduciendo el problema con el punto de entrada WebviewScaffold y la URL m3u8 proporcionada en Android; después, compara el comportamiento con iOS. Inspecciona el manejo de medios del Android WebView del plugin; se considera completado cuando el stream se reproduce en Android o cuando la limitación y la configuración necesaria están claramente documentadas.

Escrito por el modelo de indexación a partir del texto del issue.