Stripping headers on response depending on client IP

Here is the sample rule that I came up with. Very similar to that which was posted by Kai. However, I modified the conditions slightly as we don't know that the headers will exist for every request, so instead I opted to loop through all headers by name and delete any that match a switch statement. I don't know why I didn't think to try the address as 10.0.0.0/8 or similar, as we already employ that in a class file for a similar purpose elsewhere. Thanks for the reminder and response.

when HTTP_REQUEST {
  check for internal state
  if {([class match [IP::client_addr] equals private_net])}{
    set internal_client 1
  } else {
    set internal_client 0
  }
}
when HTTP_RESPONSE {   
  if {!($internal_client)}{
    foreach header_name [HTTP::header names] {
      switch [string tolower $header_name] {
        "badheader1" -
        "itwasfordebugging" -
        "whyohwhy" { HTTP::header remove $header_name }
      } 
    } 
  }
}