How to allow 405 response code for certain HTTP Header?

Can u pls try with irule if possible.

when HTTP_REQUEST {
    if { [HTTP::header exists "X-Special-Header"] } {
        set allow_405 1
    } else {
        set allow_405 0
    }
}

when HTTP_RESPONSE {
    if { $allow_405 } {
        if { [HTTP::status] == 405 } {
            # Allow the 405 response if the special header was present in the request
            # Optionally log this event
            log local0. "Allowing 405 response for request with X-Special-Header"
        } else {
            # Reset the allow_405 flag if the response status is not 405
            set allow_405 0
        }
    }
}