Remove values of a response header

[asamadyar]

Hi everybody,

I need to remove the values of a response header. For example:

access-control-allow-headers    ----->  X-Request-UUID, X-Web-Optimize-Response, X-Web-Client-Id, X-Web-City-Id, X-Web-ClientI

I need to remove "X-Web-City-Id" and keep everything as they are.

I couldn`t find a related iRule. 

I would appreciate it if somebody could help me with this.

Best,

Ali

[Dario_Garrido]

Hello Asamadyar.

If the header is located in the Response, you could remove it with next iRule.

when HTTP_RESPONSE
	HTTP::header remove "X-Web-City-Id"
}

Take into account that you would need a HTTP profile applied.

[asamadyar]

Many thanks, @Dario_Garrido 

I don`t want to remove the header; I need to remove one value.

header ------------------------------------------- value

x-x-x                                                       t1, t2, t3, t4, t5

And I need to remove, for example, "t3" and keep everything intact in the response header.

I think your code will completely remove the header (x-x-x).

[Dario_Garrido]

Hello Asamadyar.

Try with this code

when HTTP_RESPONSE {
	if { [HTTP::header "access-control-allow-headers"] ne "" } {
		if { [HTTP::header "access-control-allow-headers"] contains "," }{
			set acheaders [split [HTTP::header "access-control-allow-headers"] ","]
			set output ""
			foreach acheader $acheaders {
				if { $output eq "" } {
					if { !($acheader contains "X-Web-City-Id") } { set output "$acheader" }
				} else {
					if { !($acheader contains "X-Web-City-Id") } { set output "$output,$acheader" }
				}
			}
			#log local0. "INPUT: [HTTP::header "access-control-allow-headers"]"
			HTTP::header replace "access-control-allow-headers" $output
			#log local0. "OUTPUT: [HTTP::header "access-control-allow-headers"]"
		}
	}
}