Ok. So maybe I didn't mean "destroy" since the window won't open again. Maybe some clarification would help. Essentially, I have a grid which is parent records with a button to "view details" (child records) which launches the window with a frame to the details page. When the grid button is clicked, I am simply changing the loader URL to the correct child path (e.g. "/team/details/1", "/team/details/2", "/team/details/3",etc.) When I open the first window, it is fine as the page is loading the first time, but thereafter, the window pops open with the old content and then swaps over to the new. It isn't broken, per se, but it isn't sensible to the user. I would prefer that the widow "forget" the frame and be blank while loading, or if nothing else, I would accept a mask that shows it's loading. However, my preference is that the window not cache it's previously loaded frame. Is there a way to do this by a window setting, or is there another way that is required to implement this functionality?