If target is Google Maps, position is impossible to get

I tried this code

`final flutterWebviewPlugin = new FlutterWebviewPlugin();
var url = "https://www.google.com/maps/";
flutterWebviewPlugin.launch(
url,
withJavascript: true,
);`

The interface works fine, but it's impossible for google maps to get the position of the user.
No permissions are asked and it just doesn't work.

Start by reproducing the issue through FlutterWebviewPlugin.launch with the Google Maps URL and JavaScript enabled. Investigate how this plugin handles location permissions for the embedded page; done means Google Maps can request and obtain the user's position without breaking the existing interface.

Written by the indexing model from the issue text.