Prefix URLs sent to the origin with a base path.

For example, with an origin of example.​com, setting the value to /images sets the origin's base path to example.​com/images. Any request for a my_pics/home.​jpg file resolves on the origin server to example.​com/images/my_pics/home.​jpg.

Note that changing the origin's base path also causes a change to the cache key. Until that resolves, it may cause a traffic spike to your origin server.

valuestring (allows variables)

Specifies the base path of content on your origin server. The value needs to begin and end with a slash (/) character, for example /parent/child/.