iOS about:blank popup not loading page

[xxunghee]

• I have read the Getting Started section
• I have already searched for the same problem

Environment

Technology	Version
Flutter version	3.3.9
Plugin version	flutter_inappwebview: ^5.7.1+1 url_launcher: ^6.1.7
Android version	Android Studio Dolphin ( 2021.3.1 Patch 1 )
iOS version	16.2
macOS version	13.1
Xcode version	14.2

Device information:

Description

Expected behavior:

• Show popup window with content.
• In Android, it works
  

Current behavior:

• Empty page (iOS)
  

Steps to reproduce

Sample code

show

main.dart (whole)

 import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter_inappwebview/flutter_inappwebview.dart';
import 'package:url_launcher/url_launcher.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'iOS about_blank Sample',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key});

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {

  InAppWebViewController? _inAppWebViewController;

  final Completer<InAppWebViewController> _controller =
  Completer<InAppWebViewController>();

  String initUrl = 'https://postcode.map.daum.net/guide';

  InAppWebViewGroupOptions options = InAppWebViewGroupOptions(
    crossPlatform: InAppWebViewOptions(
      preferredContentMode: UserPreferredContentMode.MOBILE,
      cacheEnabled: true,
      mediaPlaybackRequiresUserGesture: true,
      javaScriptEnabled: true,
      javaScriptCanOpenWindowsAutomatically: true,
      useShouldOverrideUrlLoading: true,
    ),
    android: AndroidInAppWebViewOptions(
      useHybridComposition: false,
      supportMultipleWindows: true,
      domStorageEnabled: true,
      databaseEnabled: true,
      cacheMode: AndroidCacheMode.LOAD_CACHE_ELSE_NETWORK,
      mixedContentMode: AndroidMixedContentMode
          .MIXED_CONTENT_ALWAYS_ALLOW,
    ),
    ios: IOSInAppWebViewOptions(
      applePayAPIEnabled: true,
      allowsInlineMediaPlayback: true,
      ignoresViewportScaleLimits: true,
      sharedCookiesEnabled: true,
    ),
  );

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: InAppWebView(
        initialUrlRequest: URLRequest(url: Uri.parse(initUrl)),
        initialOptions: options,
        onWebViewCreated: (InAppWebViewController controller) {
          _controller.future.then((value) => _inAppWebViewController = value);
          _controller.complete(controller);
        },
        onLoadStart: (controller, url) {
          print("@Parent onLoadStart() $url");
        },
        onLoadStop: (controller, url) {
          print('@Parent onLoadStop() $url');
        },
        onLoadError: (controller, url, code, message) { /* do nothing */ },
        onLoadHttpError: (controller, url, code, message) { /* do nothing */ },
        onProgressChanged: (controller, progress) { /* do nothing */ },
        onCreateWindow: (controller, createWindowRequest) async {
          print("@Parent onCreateWindow(), $createWindowRequest");
          await _showPopUpWindow(context, createWindowRequest, controller);
          return true;
        },
        onCloseWindow: (controller) {
          print('@Parent onCloseWindow()');
          closeInAppWebView();
        },
      ),
    );
  }

  _showPopUpWindow(BuildContext context, CreateWindowAction createWindowRequest, InAppWebViewController controller) async {
    showDialog(
      barrierDismissible: true,
      context: context,
      builder: (context) {
        return Scaffold(
          body: Stack(
            children: [
              InAppWebView(
                windowId: createWindowRequest.windowId,
                initialOptions: options,
                onWebViewCreated: (controller) {
                  _inAppWebViewController = controller;
                },
                onCreateWindow: (controller, windowAction) async {
                  print("#popup onCreateWindow()");
                  return true;
                },
                onLoadStart: (controller, url) {
                  print('#popup onLoadStart() $url');
                },
                onLoadError: (controller, url, code, message) {
                  /* do nothing */
                },
                onLoadHttpError: (controller, url, code, message) {
                  /* do nothing */
                },
                onLoadStop: (controller, url) {
                  print("#popup onLoadStop() $url");
                },
                onCloseWindow: (controller) async {
                  print('#popup onCloseWindow()');
                  await _controller.future
                      .then((value) => _inAppWebViewController = value);
                  Navigator.pop(context, null);
                },
              ),
              Positioned(
                top: 5,
                right: 10,
                child: IconButton(
                  icon: const Icon(Icons.cancel, color: Colors.black),
                  onPressed: () {
                    _inAppWebViewController = controller;
                    Navigator.pop(context, null);
                  },
                ),
              ),
            ],
          ),
        );
      },
    );
  }
}

1. Run sample code
2. Scroll down to below page

3. click [우편번호 찾기](red box) button
4. Webview shows popup window without any contents.

Stacktrace/Logcat

• Android

I/flutter ( 2141): @Parent onLoadStart() https://postcode.map.daum.net/guide
I/flutter ( 2141): @Parent onLoadStop() https://postcode.map.daum.net/guide
I/flutter ( 2141): @Parent onCreateWindow(), {request: { ... } ... }

• iOS

flutter: @Parent onLoadStart() https://postcode.map.daum.net/guide
flutter: @Parent onLoadStop() https://postcode.map.daum.net/guide
flutter: @Parent onCreateWindow(), {request: { ... } ... }
flutter: #popup onLoadStart()
flutter: #popup onLoadStop() about:blank

[github-actions]

👋 @xxunghee

NOTE: This comment is auto-generated.

Are you sure you have already searched for the same problem?

Some people open new issues but they didn't search for something similar or for the same issue. Please, search for it using the GitHub issue search box or on the official inappwebview.dev website, or, also, using Google, StackOverflow, etc. before posting a new one. You may already find an answer to your problem!

If this is really a new issue, then thank you for raising it. I will investigate it and get back to you as soon as possible. Please, make sure you have given me as much context as possible! Also, if you didn't already, post a code example that can replicate this issue.

In the meantime, you can already search for some possible solutions online! Because this plugin uses native WebView, you can search online for the same issue adding android WebView [MY ERROR HERE] or ios WKWebView [MY ERROR HERE] keywords.

Following these steps can save you, me, and other people a lot of time, thanks!

[hm122]

Facing the same issue.

[alexrafuse]

Facing the same issue, any update?

[iapb1021]

ios/Runner/Info.plist
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>

[abdulahath]

is this issue resolved in 6.0.0-beta.23 ?

[divpa]

@pichillilorenzo can you please tell me how this issue is resolved, I am finding here but not getting any solution ?

[divpa]

@pichillilorenzo can you please tell me how this issue is resolved, I am finding here but not getting any solution ?
Hi @pichillilorenzo I am eagerly waiting for your reply, please tell me is it resolved , because I have checked same thing on latest version but getting same blank pop up, your help in this matter will highly appreciated.

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug and a minimal reproduction of the issue.