diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index a8342d123..201224633 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -203,6 +203,7 @@ hideo aoyama <https://github.com/boukendesho>
 Ross Brown <rbrownwsws@googlemail.com>
 🦙 <github.com/iamllama>
 Lukas Sommer <sommerluk@gmail.com>
+Luca Auer <lolle2000.la@gmail.com>
 Lukas Sommer <sommerluk@users.noreply.github.com>
 Niclas Heinz <nheinz@hpost.net>
 Omar Kohl <omarkohl@posteo.net>
diff --git a/qt/aqt/webview.py b/qt/aqt/webview.py
index 980e7a989..b5b50ad72 100644
--- a/qt/aqt/webview.py
+++ b/qt/aqt/webview.py
@@ -659,17 +659,17 @@ html {{ {font} }}
         page = self.page()
         assert page is not None
 
-        if cb:
-
-            def handler(val: Any) -> None:
-                if self._shouldIgnoreWebEvent():
-                    print("ignored late js callback", cb)
-                    return
+        def handler(val: Any) -> None:
+            if self._shouldIgnoreWebEvent():
+                print("ignored late js callback", cb)
+                return
+            if cb:
                 cb(val)
 
-            page.runJavaScript(js, handler)
-        else:
-            page.runJavaScript(js)
+            # Without the following, stale frames showing previous or corrupt content get occasionally displayed. (see #3668 for more details)
+            self.update()
+
+        page.runJavaScript(js, handler)
 
     def _queueAction(self, name: str, *args: Any) -> None:
         self._pendingActions.append((name, args))