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mika's avatar
mika
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Sep 24, 2020

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

Hello,

I have a problems in my IRules the redirections http to https.

In the logs LTM i have this error:

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

 SO: the redirection don't work in some browser : for few minutes i get an error conexion reset.

Thanks for your feedback


BIG-IP 14.1.2.3

  • If the irule only makes the http to https better use the default F5 iRule _sys_https_redirect

    If not don’t forget the return in the line after the redirect and if you have that check if there are more than one iRule on the VS

    Also a good idea is to close the connection so I use most times

    HTTP::respond 302 noserver Location https://[HTTP::host][HTTP::uri]  Connection Close
     
    • mika's avatar
      mika
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      Thank you for your anser,

      this is the IRule who i used and i have alwayse the same problems with all hosts.

       

      when HTTP_REQUEST {

         

        if { [string tolower [HTTP::host]] contains "mysite.com"} {

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

           #log local0. "[HTTP::host] [HTTP::uri]"

          HTTP::respond 301 Location "https://[HTTP::host][HTTP::uri]"

          regsub -all {:\d*$} [HTTP::host] "" host

           HTTP::redirect https://$host[HTTP::uri]

           return

        

        }

         

        }

       

      • Hi mika,

        Would you try using the "HTTP::has responded" line, before if statement?

        when HTTP_REQUEST {
        	if {[HTTP::has_responded]} { return }
        	
        	if {[string tolower [HTTP::host]] contains "mysite.com"} {
        		HTTP::respond 301 Location "https://[HTTP::host][HTTP::uri]"
        		return
        	}
        }
  • After a HTTP::respond or a HTTP::redirect must follow a return, both lines do more or less the same and F5 has a problem using the [HTTP::] values after a call like that