Photon plugin to Photon Cloud through firewalls

Does Photon plugin to Photon cloud support HTTP over port 80? What are the options for best getting through firewalls? Photon Unity Networking Classic - FREE | Network | Unity Asset Store

No, there is no support for HTTP in Photon 3 at all. Its UDP only unless you modify the client library to use TCP, then its udp or tcp but http is not implemented at the time