proxy_cookie_domain

This directive appeared in version 1.1.15.

Sets a text that should be changed in the domain attribute of the “Set-Cookie” header fields of a proxied server response. Suppose a proxied server returned the “Set-Cookie” header field with the attribute “domain=localhost”. The directive

proxy_cookie_domain localhost example.org;

will rewrite this attribute to “domain=example.org”.

A dot at the beginning of the domain and replacement strings and the domain attribute is ignored. Matching is case-insensitive.

The domain and replacement strings can contain variables:

proxy_cookie_domain www.$host $host;

The directive can also be specified using regular expressions. In this case, domain should start from the “~” symbol. A regular expression can contain named and positional captures, and replacement can reference them:

proxy_cookie_domain ~\.(?P<sl_domain>[-0-9a-z]+\.[a-z]+)$ $sl_domain;

There could be several proxy_cookie_domain directives:

proxy_cookie_domain localhost example.org;
proxy_cookie_domain ~\.([a-z]+\.[a-z]+)$ $1;

The off parameter cancels the effect of all proxy_cookie_domain directives on the current level:

proxy_cookie_domain off;
proxy_cookie_domain localhost example.org;
proxy_cookie_domain www.example.org example.org;