+----------------+
                          |                |
                          |   Web Server   |
                          |                |
                          +----------------+
                              ^        ^
                             /          \
                    HTTPS   /            \   HTTPS
                      or   /              \   or
               WebSockets /                \ WebSockets
                         v                  v
                      JS API              JS API
                +-----------+            +-----------+
                |           |    Media   |           |
                |  Browser  |<---------->|  Browser  |
                |           |            |           |
                +-----------+            +-----------+
                    Alice                     Bob