navigation_delegate_channel_->InvokeMethod(
       "onPageStarted", std::make_unique<flutter::EncodableValue>(args));

[ERROR:flutter/shell/common/shell.cc(1065)] The 'plugins.flutter.io/lwe_webview_navigation_delegate_0' channel 
sent a message from native to Flutter on a non-platform thread. Platform channel messages must be sent on the 
platform thread. Failure to do so may result in data loss or crashes, and must be fixed in the plugin or application 
code creating that channel.
See https://docs.flutter.dev/platform-integration/platform-channels#channels-and-platform-threading for more information.