VarHTTP / TWiki / TWiki

Called with the name of an HTTP header field, returns its value. Capitalization and the use of hyphens versus underscores are not significant.
Syntax: %HTTP%
Syntax: %HTTP{"Header-name"}%
Examples:

%HTTP%

%HTTP{"Accept-language"}% en-us,en;q=0.5

%HTTP{"User-Agent"}% CCBot/1.0 (+http://www.commoncrawl.org/bot.html)
Note: You can see the HTTP headers your browser sends to the server on a number of sites e.g. http://www.ericgiguere.com/tools/http-header-viewer.html
Related: HTTPS, REMOTE_ADDR, REMOTE_PORT, REMOTE_USER

`%HTTP%`
`%HTTP{"Accept-language"}%`	en-us,en;q=0.5
`%HTTP{"User-Agent"}%`	CCBot/1.0 (+http://www.commoncrawl.org/bot.html)