This ruleset supplies content filtering for the full HTTP header. By default, the HTTP-proxy uses exact matching rules to strip Via and From headers, and allows all other headers. This ruleset matches the full header, not only the name.
To match all values of a header, type the pattern: [header name]:*. To match only some values of a header, replace the asterisk (*) wildcard with a pattern. If your pattern does not start with an asterisk (*) wildcard, include one space between the colon and the pattern when you type in the Pattern text box. For example, type: [header name]: [pattern], not [header name]:[pattern].
The default rules do not strip the Referer header, but do include a disabled rule to strip this header. To enable the rule to strip the header, select Change View. Some web browsers and software applications must use the Referer header to operate correctly.
If you modified a predefined proxy action, when you save the changes you are prompted to clone (copy) your settings to a new action.
For more information on predefined proxy actions, see About Proxy Actions.
About the HTTP-Proxy