Forum Discussion
Surgeon
Dec 12, 2018Ret. Employee
There are some limitations for using iRule with header insert command and performance HTTP VIP
"The HTTP Header Insert field of the Fast HTTP profile only supports insertion of a static text HTTP header. The Fast HTTP profile will not perform iRule variable expansion for the HTTP Header Insert field; this is considered an unnecessary performance hit for the Fast HTTP profile."
https://support.f5.com/csp/article/K8024