WebView Context-Menu incorrectly positioned in embedded Applet

I have a WebView inside an Applet embedded in a web-page.

When i use a right-click to open the context menu it is originally positioned correctly.

But if i move, scroll or zoom the browser window it seems the new position & zoom is completely ignored and the original position is still used internally to position the context-menu.

Steps to reproduce:
- Put a WebView into an Applet and open the Applet in a webpage.
- Right click on the WebView to get a context-menu. Notice the correct positioning.

- Move the outer browser window to a different position.
- Right click on the WebView to get a context-menu. Notice the wrong positioning.

- Scroll the outer website up or down a bit.
- Right click on the WebView to get a context-menu. Notice the wrong positioning.

- Zoom the outer browser window's content.
- Right click on the WebView to get a context-menu. Notice the wrong positioning.


I tried this only in a sandboxed applet, but i suspect that this happens with AllPermissions, too.