CoreMediaErrorDomain error -12642 - playlist parse error.

Hi,

Thank you for the updates to the plugin. Greatly appreciate it !! Unable to play encrypted video on ios getting the error

```
PlatformException(VideoError, Failed to load video: The operation couldn’t be completed. (CoreMediaErrorDomain error -12642 - playlist parse error.
```

This is only IOS. On Android there are no issues.

river_player: ^0.1.3

Thank you.