For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

MAbbas's avatar
MAbbas
Icon for Cirrus rankCirrus
Mar 21, 2022

insert HTTP Header after

Hi All i want to insert a header a certain header  in my scenario - i want to insert a custom header after - accept: application/json can can someone guide - Thanks   
application delivery
iaine's avatar
iaine
Icon for Nacreous rankNacreous
Mar 21, 2022

Hi

So something like...

when HTTP_REQUEST {
  if { [HTTP::header "Accept"] contains "application/json" }  {
  HTTP::header insert "New-Header" "New-Header-Value"
	}
}
  • MAbbas's avatar
    MAbbas
    Icon for Cirrus rankCirrus
    Mar 21, 2022

    thanks for the reply - it does insert a header - but not right after - but as the last header 

    i am trying tackel - Expect: 100-continue -- if i can insert it on F5 instead of client sending it through 

    • iaine's avatar
      iaine
      Icon for Nacreous rankNacreous
      Mar 22, 2022

      Gotcha, how about something like...

      when HTTP_REQUEST {
if {[HTTP::header "Accept"] contains "application/json"}{
foreach aHeader [HTTP::header names] {
set hValue [HTTP::header value $aHeader]
if {$aHeader == "Accept"}{
HTTP::header remove $aHeader
HTTP::header insert $aHeader $hValue
HTTP::header insert "New-Header" "New-Header-Value"
} else {
HTTP::header remove $aHeader
HTTP::header insert $aHeader $hValue
}
}
}
}