For a current list of web applications see Symantec Site Review Applications.
SEE ALERT 2545 FOR A LIST OF CHANGES TO GO INTO EFFECT 30 MAY 2018 along with information on how to make the changes on your appliance.
This information can also be extracted directly from the Edge SWG (ProxySG) via the CLI once you've entered configuration mode.
#(config) content-filter
This changes the prompt to:
#(config bluecoat) #(config content-filter) bluecoat
This changes the prompt to:
#(config bluecoat) view applications
View supported application names.
#(config bluecoat) view operations [all | <application name>]
View supported application operations.
See ALERT 2545 for instructions and special considerations regarding the application name changes.