How do I destroy web browser in UMG in order to stop the sound

Hello everyone. I have a UMG Widget and within it I call a web browser. I have the user click an exit button and that removes the widget and removes the browser using the remove from parent blue print. But when I remove the widget and browser the sound still plays. I need to get the sound from the browser to stop. I tried everything for 2 weeks with no avail. would someone be able to steer me in the right direction please?