In a request worker, what the front process wrote; with global.trustProxy
off, the socket's peer; with no ranges, the left-most forwarded entry; with
ranges, the right-most forwarded entry that is not a trusted proxy, and the
peer itself when the peer is not one.
Returns the address a request came from.
In a request worker, what the front process wrote; with
global.trustProxyoff, the socket's peer; with no ranges, the left-most forwarded entry; with ranges, the right-most forwarded entry that is not a trusted proxy, and the peer itself when the peer is not one.