jpetrucc

  http-request deny if { path -m sub ${ }
  http-request deny if { query -m sub ${ }
  http-request deny if { path -m sub $%7B }
  http-request deny if { query -m sub $%7B }
  http-request deny if { path -m sub %24%7B }
  http-request deny if { query -m sub %24%7B }