Text-to-speech audio is not stopping when the avatar is closed

psmith 7 years ago in SitePal Gold 0
I have one web page with a div containing a SitePal scene and several other informational divs.This is all presented on top of a main page, immediately after a user logs in to the site. In IE and Chrome, closing that main div hides the animated avatar as expected and also stops the audio feed. In Firefox, the audio feed continues. Other locations on the site don't seem to have this browser-dependent behavioral difference. Anything special I should be doing to forcibly stop the audio?
audio text to speech stream