Workaround for invalid 304 content-length

when SERVER_CONNECTED {
   TCP::collect 12
}
when HTTP_REQUEST_SEND {
   set response_pending 1
   TCP::collect 12
}
when SERVER_DATA {
   if {$response_pending == 1} {
       Check for 304 response
      if {[TCP::payload] starts_with "HTTP/1.1 304"} {
          set index [string first "Content-Length" [TCP::payload]]
           Check if header is found
          if {$index != -1} {
             TCP::payload replace $index 2 "X-"
          }
          elseif {[string first "\r\n\r\n" [TCP::payload]] == -1} {
              Dont have the end of header. Collect more.
             TCP::collect
             return
         }
    }
    set response_pending 0
}