TCL error Can't call after responding - ERR_NOT_SUPPORTED invoked from within "HTTP::host"

[skeenster]

Hi

Just upgraded to 14.1.2.6 and had some iRules broken in the process. I am seeing error below but struggling to resolve.

TCL error Can't call after responding - ERR_NOT_SUPPORTED invoked from within "HTTP::host"

Guess we are affected by this but none of the workarounds seem to resolve.

https://support.f5.com/csp/article/K23237429

Here is the irule that worked before upgrade:

ltm rule /Common/apples_pears_oranges {

  when HTTP_REQUEST {

 if { ([HTTP::host] eq "wwwapple.removed.com") && ([string tolower [HTTP::uri]] starts_with "/pears") } {

  HTTP::respond 307 Location "https://oranges.com[HTTP::uri]"

 }

}

}

Any help would be gratefully appreciated. We have multiple irule applied and even policy doesnt fix.

Thanks

skeenster

[Enes_Afsin_Al]

Hi skeenter,

Add this line all affected iRules.

if { [HTTP::has_responded] } { return }

when HTTP_REQUEST {
	if { [HTTP::has_responded] } { return }
	elseif { [HTTP::host] equals "wwwapple.removed.com" && [string tolower [HTTP::uri]] starts_with "/pears" } {
		HTTP::respond 307 Location "https://oranges.com[HTTP::uri]"
		return
	}
}

[skeenster]

Thanks for the reply this actually did resolved our issue once it was applied to all the required iRules on the virtual server.

Is this fix also required for HTTP::redirect as these iRule appear to be working, but not sure if we need to update?