HOWTO: Retrieve Request Headers using ISAPI, ASP, and ASP.Net
Good hint Michael!
Within the article they say:
"Notice that HTTP_ syntax only retrieves the header name with dashes, while HEADER_ syntax retrieves both headers with dashes and underscores individually"
"With ASP.Net, the Headers collection is the only way to get all the header values. HTTP_ prefix only retrieves the header name with dashes, as expected"
Wes, based on that information you should either stick with your solution (SSLENV), or
a.) add the header SSL-ENV on F5. Then you can retrieve the value with "HTTP_SSL-ENV" or "HEADER_SSL-ENV" in ASP code
b.) add the header SSL_ENV on F5. Then you can retrieve the value with "HEADER_SSL_ENV" in ASP code
more or less :-)
Regards
Kurt Knochner