Blue Coat Systems Proxy SG manual Delete

Chapter 5: Action Reference

delete( )

Deletes all components of the specified header.

Note: An error results if two header modification actions modify the same header. The error is noted at compile time if the conflicting actions are within the same action definition block. A runtime error is recorded in the event log if the conflicting actions are defined in different blocks.

Syntax

delete(header)

where:

header—A header specified using the following form. For a list of recognized headers, see Appendix C.

•request.header.header_name—Identifies a recognized HTTP request header.

•response.header.header_name—Identifies a recognized HTTP response header.

•request.x_header.header_name—Identifies any request header, including custom headers.

•response.x_header.header_name—Identifies any response header, including custom headers.

•exception.response.header.header_name—Identifies a recognized HTTP response header from the exception response.

Layer and Transaction Notes

•Use with exception.response.header.header_name in <Proxy> or <Exception> layers.

•Use with request or response headers in <Proxy> or <Cache> layers.

•Do not use in <Admin> or <Forward> layers.

•Applies to HTTP transactions.

Example

; Delete the Referer request header, and also log the action taken.

define action DeleteReferer

log_message("Referer header deleted: $(request.header.Referer)") delete(request.header.Referer)

end action DeleteReferer

See Also

•Actions: append( ), delete_matching( ), rewrite(header, regex_pattern, replacement_component), set(header, string)

•Conditions: request.header.header_name=, request.header.header_name.address=, request.x_header.header_name=, request.x_header.header_name.address=, response.header.header_name=, response.x_header.header_name=

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