Backport: Preserve forwarded IP address for trusted proxy chains #1343
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This is a backport to
2-0-stable
of @SamSaffron's fix which was merged tomaster
with #1224@eileencodes @tenderlove it would be super awesome if you could make a new rack release with this backport 馃槉 .
Sometimes proxies make requests to Rack applications, for example
HAProxy health checks and so on.
Previously the forwarded IP implementation ate up these IP addresses,
making it hard to tell in Rack applications who made the request