Apache mod_rewrite CGI Variables in ColdFusion

Question

I have an environment that consists of Apache 2.2.8 and ColdFusion 8 running on Solaris 10.
I am attempting to pass a CGI variable to ColdFusion as part of an Apache Rewrite rule, however I am not able to do so.
The Rewrite rule set exists as follows:
RewriteCond %{SSL:SSL_PROTOCOL} ^TLSv1$
RewriteCond %{HTTP_REFERER} !^$ [NC]
RewriteRule ^.*$ %{HTTP_REFERER}?result=pass [L,R,E=HTTP_MYVAR:rw]
The rule set works with the exception of the availability of the CGI variable HTTP_MYVAR within the ColdFusion CGI scope.
I am testing for the existance of the variable within ColdFusion as follows:
<cfif (structkeyexists(cgi, 'CGI.HTTP_MYVAR'))>
   CGI.HTTP_MYVAR exists as:<cfoutput>#CGI.HTTP_MYVAR#</cfoutput>
<cfelse>
   CGI.HTTP_MYVAR does not exist.
</cfif>
Does anyone have experience creating variables in an Apache Rewrite rule set and evaluating them in ColdFusion?
Thanks in advance for any assistance.

Answer 1

OK, as part of my work-avoidance for the day, I have replicated the work I did in NZ on my other laptop.
I put this in httpd.conf
Alias /junk C:/webroots/junk
<Directory "C:/webroots/junk">
    Options Indexes FollowSymLinks
    AllowOverride None
    Order allow,deny
    Allow from all
    RewriteEngine  on
    RewriteBase    /junk/
    RewriteRule (.*) $1 [E=MYCUSTOMVARIABLE:mycustomvalue]
</Directory>
And my test code is this:
<cfoutput>
CGI.MYCUSTOMVARIABLE = [#CGI.MYCUSTOMVARIABLE#]<br />
</cfoutput>
I restart Apache, run the template, and I get this:
CGI.MYCUSTOMVARIABLE = [mycustomvalue]
How does this differ from what you're doing?
Adam