Sending Block Page to user

The curly braces around the content prevent variable expansion. You can use double quotes and escape all the meta-characters except around [HTTP::uri] or use subst instead. Here's a recent example:

http://www.tcl.tk/man/tcl8.4/TclCmd/subst.htm

https://devcentral.f5.com/community/groupdetails/tabid/1082223/aft/2158958/asg/50/default.aspx2234979

Aaron

when HTTP_REQUEST {
log local0. "Log me one time"
log local0. " [HTTP::uri] "
HTTP::respond 200 content [subst {
 
 
Blocking Page
 
 
We are sorry, but you were blocked due to [HTTP::uri]

 
  
}]