- Called with the name of an HTTP request header field, returns its value. Capitalization and the use of hyphens versus underscores are not significant.
- Request headers are sent by the browser to the server. It is not possible to access the Response headers returned to the browser.
- Only returns headers permitted by site configuration. Returns '' if the header is not allowed.
- When called without a parameter, nothing is returned. See VarHTTPS for other options.

The HTTP and HTTPS macros are deprecated as of Foswiki release 2.1. and will be removed in a future release.
Parameters
Examples
HTTPS,
REMOTE_ADDR,
REMOTE_PORT,
REMOTE_USER
Topic revision: r1 - 12 Jan 2026, ProjectContributor
- This page was cached on 09 Oct 2026 - 11:46.
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