InAppLocalhostServer - Error: type 'List<dynamic>' is not a subtype of type 'List<int>' in type cast

[demchiva]

Hi, when i call this code

flutter_inappwebview: ^5.1.0+4

final InAppLocalhostServer localhostServer = InAppLocalhostServer();

@override
  void initState() {
    super.initState();
    startServer();
  }

void startServer() async {
    await localhostServer.start();
  }

I get this error.

 #0      InAppLocalhostServer.start.<anonymous closure>.<anonymous closure>.<anonymous closure> (package:flutter_inappwebview/src/in_app_localhost_server.dart:42:25)
 #1      InAppLocalhostServer.start.<anonymous closure>.<anonymous closure>.<anonymous closure> `(package:flutter_inappwebview/src/in_app_localhost_server.dart:41:23)`
 #2      _rootRunUnary (dart:async/zone.dart:1362:47)
 #3      _CustomZone.runUnary (dart:async/zone.dart:1265:19)
 #4      _CustomZone.runUnaryGuarded (dart:async/zone.dart:1170:7)
 #5      _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:341:11)
 #6      _BufferingStreamSubscription._add (dart:async/stream_impl.dart:271:7)
 #7      _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:733:19)
 #8      _StreamController._add (dart:async/stream_controller.dart:607:7)
 #9      _StreamController.add (dart:async/stream_controller.dart:554:5)
 #10     _HttpServer._handleRequest (da

flutter doctor

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 2.0.1, on Microsoft Windows [Version 10.0.18363.1377], locale ru-RU)
[√] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
[√] Chrome - develop for the web
[√] Android Studio (version 4.1.0)
[√] IntelliJ IDEA Community Edition (version 2018.3)
[√] VS Code (version 1.51.1)
[√] Connected device (2 available)

• No issues found!

with version flutter_inappwebview: ^4.0.0+4 it works correct.

Thanks for your time.

[demchiva]

When i change line 42

var body = [] as List<int>;

in file in_app_localhost_server.dart to line

List<int> body = [];

it is fix the problem.

[ritterdn]

This change got us past the error and allowed us to load an html file downloaded from the web and access local css/js/imgs from the project's assets directory. So we're back in business, highly recommend this fix, thanks demchiva!