iOS 18.4 won't load only google.com

[paseri3739]

InAppWebView won't load only google.com on iOS. The loading will never end.

www.google.co.jp is correctly loaded but when I try www.google.com it doesn't work. Any other websites such as duckduckgo except google.com can be loaded.

Console says,
flutter: WebViewError code=CANNOT_PARSE_RESPONSE description=cannot parse response

My code for initialization is here

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

import '../../domain/web_view_config.dart'; // 設定クラスをインポート
import '../../domain/web_view_model.dart';

class WebViewHomePage extends ConsumerWidget {
  const WebViewHomePage({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    // ドメイン層から設定情報を取得
    final config = ref.watch(webViewConfigProvider);
    // providerからNotifierを取得
    final webViewNotifier = ref.read(webViewProvider.notifier);

    // InAppWebViewに渡すPullToRefreshControllerをbuild内で生成
    final pullToRefreshController = PullToRefreshController(
      settings: config.pullToRefreshSettings,
      onRefresh: () async {
        // computed provider を利用して、非nullなWebViewStateを直接取得（初期化前は例外）
        final stateData = ref.read(webViewStateProvider);
        stateData.webViewController.reload();
      },
    );

    return InAppWebView(
      // 設定情報を利用して初期URLと設定を渡す
      initialUrlRequest: URLRequest(url: WebUri(config.initialUrl)),
      initialSettings: config.settings,
      pullToRefreshController: pullToRefreshController,
      onWebViewCreated: (controller) {
        // providerの非同期初期化（状態がloadingの場合のみ更新）
        webViewNotifier.onWebViewCreated(
          controller,
          pullToRefreshController: pullToRefreshController,
        );
      },
      onLoadStop: (controller, url) {
        pullToRefreshController.endRefreshing();
        if (url != null) {
          webViewNotifier.update(url: WebUri(url.toString()));
        }
      },
      onReceivedError: (controller, request, error) {
        debugPrint('WebViewError code=${error.type} description=${error.description}');
        pullToRefreshController.endRefreshing();
      },
      onProgressChanged: (controller, progressPercent) {
        final normalizedProgress = progressPercent / 100.0;
        webViewNotifier.update(
          loadingProgress: LoadingProgress(normalizedProgress),
        );

        if (progressPercent == 100) {
          pullToRefreshController.endRefreshing();
          // 描画前に値がリセットされ、連動してAppBarのプログレスもリセットされる
          webViewNotifier.resetProgress();
        }
      },
      shouldOverrideUrlLoading: (controller, action) async {
        return NavigationActionPolicy.ALLOW;
      },
      onReceivedServerTrustAuthRequest: (controller, challenge) async {
        return ServerTrustAuthResponse(
          action: ServerTrustAuthResponseAction.PROCEED,
        );
      },
    );
  }
}

the setting model is here

@freezed
abstract class WebViewConfig with _$WebViewConfig {
  const factory WebViewConfig({
    required InAppWebViewSettings settings,
    required PullToRefreshSettings pullToRefreshSettings,
    required String initialUrl,
  }) = _WebViewConfig;
}

final defaultWebViewConfig = WebViewConfig(
  settings: InAppWebViewSettings(isInspectable: kDebugMode),
  pullToRefreshSettings: PullToRefreshSettings(color: Colors.blue),
  initialUrl: "https://www.google.co.jp",
);

info.plist and Podfile,

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
	<dict>
		<key>NSAppTransportSecurity</key>
		<dict>
			<key>NSAllowsArbitraryLoads</key><true/>
			<!-- WebView 内のロードにも例外を適用 -->
			<key>NSAllowsArbitraryLoadsInWebContent</key><true/>
		</dict>
		<key>CFBundleDevelopmentRegion</key>
		<string>$(DEVELOPMENT_LANGUAGE)</string>
		<key>CFBundleDisplayName</key>
		<string>WingBrowser</string>
		<key>CFBundleExecutable</key>
		<string>$(EXECUTABLE_NAME)</string>
		<key>CFBundleIdentifier</key>
		<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
		<key>CFBundleInfoDictionaryVersion</key>
		<string>6.0</string>
		<key>CFBundleName</key>
		<string>wing_browser</string>
		<key>CFBundlePackageType</key>
		<string>APPL</string>
		<key>CFBundleShortVersionString</key>
		<string>$(FLUTTER_BUILD_NAME)</string>
		<key>CFBundleSignature</key>
		<string>????</string>
		<key>CFBundleVersion</key>
		<string>$(FLUTTER_BUILD_NUMBER)</string>
		<key>LSRequiresIPhoneOS</key>
		<true/>
		<key>UILaunchStoryboardName</key>
		<string>LaunchScreen</string>
		<key>UIMainStoryboardFile</key>
		<string>Main</string>
		<key>UISupportedInterfaceOrientations</key>
		<array>
			<string>UIInterfaceOrientationPortrait</string>
			<string>UIInterfaceOrientationLandscapeLeft</string>
			<string>UIInterfaceOrientationLandscapeRight</string>
		</array>
		<key>UISupportedInterfaceOrientations~ipad</key>
		<array>
			<string>UIInterfaceOrientationPortrait</string>
			<string>UIInterfaceOrientationPortraitUpsideDown</string>
			<string>UIInterfaceOrientationLandscapeLeft</string>
			<string>UIInterfaceOrientationLandscapeRight</string>
		</array>
		<key>CADisableMinimumFrameDurationOnPhone</key>
		<true/>
		<key>UIApplicationSupportsIndirectInputEvents</key>
		<true/>
		<key>UIStatusBarHidden</key>
		<false/>
	</dict>
</plist>

# Uncomment this line to define a global platform for your project
# platform :ios, '12.0'

# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
ENV['COCOAPODS_DISABLE_STATS'] = 'true'

project 'Runner', {
  'Debug' => :debug,
  'Profile' => :release,
  'Release' => :release,
}

def flutter_root
  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
  unless File.exist?(generated_xcode_build_settings_path)
    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
  end

  File.foreach(generated_xcode_build_settings_path) do |line|
    matches = line.match(/FLUTTER_ROOT\=(.*)/)
    return matches[1].strip if matches
  end
  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
end

require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)

flutter_ios_podfile_setup

target 'Runner' do
  use_frameworks!
  use_modular_headers!

  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
  target 'RunnerTests' do
    inherit! :search_paths
  end
end

post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
    target.build_configurations.each do |config|
      config.build_settings['SWIFT_VERSION'] = '5.0'  # required by simple_permission
      config.build_settings['ENABLE_BITCODE'] = 'NO'
    end
  end
end

InAppWebView version is 6.0.0

$ fvm flutter --version
Flutter 3.27.1 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 17025dd882 (4 months ago) • 2024-12-17 03:23:09 +0900
Engine • revision cb4b5fff73
Tools • Dart 3.6.0 • DevTools 2.40.2

On Android it perfectly works as expected. Does this comes from incorrect setting or my code's fault? or a bug? I tried ChatGPT and it says that TLS or something related to certifiaction causes this problem so I changed onReceivedServerTrustAuthRequest but it didn't work.

I have this problem after updating Xcode and simulator's version to 18.4. Former version of iOS may load google.com.

[paseri3739]

I found onReceivedError did not handle stopLoading.

flutter: WebViewError code=NETWORK_CONNECTION_LOST description=The network connection was lost.

This error also occurs in same situation.