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Forum Discussion

Tarik_B_'s avatar
Tarik_B_
Icon for Nimbostratus rankNimbostratus
Jun 07, 2017

iRule removes second value of header cache-control

Hi all, I'm trying to remove all values after the comma of cache-control header cache-control: no-cache, max-age=0 For instance here I want to keep cache-control: no-cache, it is not...
iRules
LTM
security
Morten_Marstran's avatar
Morten_Marstran
Icon for Nimbostratus rankNimbostratus
Jun 07, 2017

Regarding Piotr's comment on checking for multiple instances of "Cache-Control", you could use HTTP::remove and then HTTP::insert, like this:

if { [HTTP::header "Cache-Control" exists] } {
    set new_header [getfield [HTTP::header "Cache-Control"] "," 1]

    HTTP::header remove "Cache-Control"
    HTTP::header insert "Cache-Control" $new_header
}