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

michaelw3's avatar
michaelw3
Icon for Nimbostratus rankNimbostratus
Feb 26, 2018

irule error x-content-type-options

I am trying to create the following irule but keep getting error message.

when HTTP_RESPONSE { if {!([HTTP::header exists "X-Content-Type-Options" ])} { HTTP::header insert "X-Content-Type-Options" "'nosniff'" }

Error message below

x-content-type-options Definition 01070151:3: Rule [/Common/x-content-type-options] error: /Common/x-content-type-options:1: error: [parse error: missing close-brace][{ if {!([HTTP::header exists "X-Content-Type-Options" ])} { HTTP::header insert "X-Content-Type-Options" "'nosniff'" }] /Common/x-content-type-options:2: error: [command is not valid in the current scope][if {!([HTTP::header exists "X-Content-Type-Options" ])} { HTTP::header insert "X-Content-Type-Options" "'nosniff'" }]

BIG-IP Access Policy Manager (APM)
security

1 Reply

  • Lee_Sutcliffe's avatar
    Lee_Sutcliffe
    Icon for Nacreous rankNacreous
    Feb 26, 2018

    Make sure you include the close bracket at the end:

    when HTTP_RESPONSE { 
    if {!([HTTP::header exists "X-Content-Type-Options"])} { 
        HTTP::header insert "X-Content-Type-Options" "nosniff" 
    }
}