Usage: reply_header_add field-name field-value [ acl ... ]
Example: reply_header_add X-Client-CA "CA=%ssl::>cert_issuer" all
This option adds header fields to outgoing HTTP responses (i.e., response
headers delivered by Squid to the client). This option has no effect on
cache hit detection. The equivalent adaptation vectoring point in
ICAP terminology is post-cache RESPMOD. This option does not apply to
successful CONNECT replies.
Field-name is a token specifying an HTTP header name. If a
standard HTTP header name is used, Squid does not check whether
the new header conflicts with any existing headers or violates
HTTP rules. If the response to be modified already contains a
field with the same name, the old field is preserved but the
header field values are not merged.
Field-value is either a token or a quoted string. If quoted
string format is used, then the surrounding quotes are removed
while escape sequences and %macros are processed.
One or more Squid ACLs may be specified to restrict header
injection to matching responses. As always in squid.conf, all
ACLs in the ACL list must be satisfied for the insertion to
happen. The reply_header_add option supports fast ACLs only.
See also: request_header_add.