Firewall and Proxy Issues - Screenleap/support GitHub Wiki

What domain exceptions do I need to add to my firewall settings to allow for screen sharing to work?

You need to allow HTTP (port 80) and HTTPS (port 443) traffic from all screenleap.com subdomains:

http://*.screenleap.com/*
https://*.screenleap.com/*

http://*.cloudfront.net/*
https://*.cloudfront.net/*