Bad Request when access through BIG IP

Hi all,

I already figured out the problem. It's because the decode irule we use in the url filtering irule & it return the decode request to backend server by "HTTP::uri $uri"

when HTTP_REQUEST {
  # decode original URI.
  set tmpUri [HTTP::uri]
  set uri [URI::decode $tmpUri]
 
  # repeat decoding until the decoded version equals the previous value.
  while { $uri ne $tmpUri } {
    set tmpUri $uri
    set uri [URI::decode $tmpUri]
  }
  HTTP::uri $uri
 
  log local0. "Original URI: [HTTP::uri]"
  log local0. "Fully decoded URI: $uri"
}