HOTFIX Integration test v0.18.2 (#3980)

core/lib/presentation/views/html_viewer/html_content_viewer_widget.dart

@@ -404,7 +404,15 @@ class HtmlContentViewState extends State<HtmlContentViewer> with AutomaticKeepAl
   void dispose() {
     _loadingBarNotifier.dispose();
     _htmlData = null;
-    _webViewController.dispose();
+    if (kDebugMode) {
+      try {
+        _webViewController.dispose();
+      } catch (e) {
+        logError('_HtmlContentViewState:dispose:_webViewController.dispose: $e');
+      }
+    } else {
+      _webViewController.dispose();
+    }
     super.dispose();
   }