scope handling fix (wip)

Author: rbri

src/main/java/org/htmlunit/javascript/host/MessagePort.java

@@ -110,7 +110,7 @@ public void postMessage(final String message, final Object transfer) {
             final URL currentURL = page.getUrl();
             final String origin = currentURL.getProtocol() + "://" + currentURL.getHost() + ':' + currentURL.getPort();
             event.initMessageEvent(Event.TYPE_MESSAGE, false, false, message, origin, "", w, transfer);
-            event.setParentScope(port_);
+            event.setParentScope(getParentScope());
             event.setPrototype(getPrototype(event.getClass()));
 
             final AbstractJavaScriptEngine<?> jsEngine = webWindow.getWebClient().getJavaScriptEngine();

src/main/java/org/htmlunit/javascript/host/Netscape.java

@@ -27,7 +27,7 @@ public class Netscape extends HtmlUnitScriptable {
 
     Netscape(final Window window) {
         super();
-        setParentScope(window);
+        setParentScope(window.getWebWindow().getTopLevelScope());
 
         // simply put "new Object()" for property "security"
         put("security", this, JavaScriptEngine.newObject(window));

src/main/java/org/htmlunit/javascript/host/Window.java

@@ -1438,7 +1438,7 @@ else if (e.getCause() instanceof EcmaError ecmaError) {
             }
 
             final Object[] args = {msg, url, Integer.valueOf(line), Integer.valueOf(column), jsError};
-            f.call(Context.getCurrentContext(), this, this, args);
+            f.call(Context.getCurrentContext(), getWebWindow().getTopLevelScope(), this, args);
         }
     }