HTTP::header insert and header names

The webserver may provide CGI variables with HTTP_ prepended to indicate the values were generated from HTTP headers in the client's request:

 

 

 

http://hoohoo.ncsa.illinois.edu/cgi/env.html

 

 

In addition to these, the header lines received from the client, if any, are placed into the environment with the prefix HTTP_ followed by the header name. Any - characters in the header name are changed to _ characters. The server may exclude any headers which it has already processed, such as Authorization, Content-type, and Content-length. If necessary, the server may choose to exclude any or all of these headers if including them would exceed any system environment limits.

 

 

 

 

Aaron