Documentation for Crowd 2.5. Documentation for other versions of Crowd is available too.
By default, Crowd compresses the output from the security server, using the Gzip compression format, before sending the data to the client over the network. Compression of server output is optional. You can turn it on or off via the Crowd Administration Console.
Here are some reasons why you may want to turn compression off:
If you're proxying Crowd behind Apache, check to see if you're using mod_deflate. You do not need to enable Gzip compression if Apache already provides it or you may encounter this issue: CWD-1398.
To enable/disable compression of server output,
Screenshot: 'Setting the Compression of Server Output'