Modify Via Header

Remove or rename HTTP Via headers in origin requests.

The Modify Via Header behavior lets you remove or rename HTTP Via headers in requests to the origin. This is beneficial if you want to remove headers that impact offload. It is on by default if you’re using API Acceleration. This behavior can be added in the default rule and in match rules with any condition.
You can define the string value with the Rename Header option, but the name cannot contain spaces or these characters: ()<>@,;:"/[]?{}