can't use getHtml() when a ContentBlocker is active

[2x2xplz]

• I have read the Getting Started section
• I have already searched for the same problem
  ContentBlockerActionType? fromValue - Null check operator used on a null value #1711
  ContentBlocker Exception for android  #1533

Environment

Technology	Version
Flutter version	3.19.6
Plugin version	6.0.0
Android version	12
iOS version
macOS version
Xcode version
Google Chrome version

Device information:

Description

Expected behavior: getHtml() should return contents of webview

Current behavior: throws an error: type 'Null' is not a subtype of type 'String'

Steps to reproduce

1. print(ContentBlockerActionType.values);

Images

Stacktrace/Logcat

#0      ContentBlockerAction.fromMap (package:flutter_inappwebview_platform_interface/src/content_blocker.dart:265:68)
#1      ContentBlocker.fromMap (package:flutter_inappwebview_platform_interface/src/content_blocker.dart:27:38)
#2      _deserializeContentBlockers.<anonymous closure> (package:flutter_inappwebview_platform_interface/src/in_app_webview/in_app_webview_settings.dart:44:42)
#3      _Array.forEach (dart:core-patch/array.dart:40:8)
#4      _deserializeContentBlockers (package:flutter_inappwebview_platform_interface/src/in_app_webview/in_app_webview_settings.dart:43:28)
#5      InAppWebViewSettings.fromMap (package:flutter_inappwebview_platform_interface/src/in_app_webview/in_app_webview_settings.g.dart:1462:9)
#6      AndroidInAppWebViewController.getSettings (package:flutter_inappwebview_android/src/in_app_webview/in_app_webview_controller.dart:2054:35)
<asynchronous suspension>
#7      AndroidInAppWebViewController.getHtml (package:flutter_inappwebview_android/src/in_app_webview/in_app_webview_controller.dart:1579:38)
<asynchronous suspension>
#8      NavigatePages.execute (package:flutterclient/components/atc_webview/navigatePages.dart:175:38)
<asynchronous suspension>
#9      webviewInterceptor.<anonymous closure> (package:flutterclient/parsing/interceptors/webviewInterceptor.dart:66:31)
<asynchronous suspension>

Calling the getHtml() method causes an error when there is one or more active ContentBlockers. As shown by the stacktrace, ultimately the function constructs an InAppWebViewSettings object, which in turn requires the construction of a ContentBlocker object. Inside the function ContentBlockerActionType.fromNativeValue() is the line:

return ContentBlockerActionType.values.firstWhere((element) => element.toNativeValue() == value);

and referencing ContentBlockerActionType.values causes the error: type 'Null' is not a subtype of type 'String'

This error likely affects other functions besides just getHtml() but in my case, getHtml() was working just fine until I added a ContentBlocker to the InAppWebView.

[github-actions]

👋 @2x2xplz

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