Squid configuration directive httpd_accel_surrogate_id

This directive is not available in the v8 version of Squid.

For older versions than v5 see the linked pages above


Option Name:	httpd_accel_surrogate_id
Replaces:
Requires:
Default Value:	visible_hostname is used if no specific ID is set.
Suggested Config:
`Surrogates (http://www.esi.org/architecture_spec_1.0.html) need an identification token to allow control targeting. Because a farm of surrogates may all perform the same tasks, they may share an identification token. When the surrogate is a reverse-proxy, this ID is also used as cdn-id for CDN-Loop detection (RFC 8586).`

httpd_accel_surrogate_id