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Levente Bagi authored
Rack 1.2's request.url method is buggy, as it gets the host part from HTTP_X_FORWARDED_HOST, but the port from SERVER_PORT (which should be used in conjuction with SERVER_ADDR). This way, if the app is run behind a reverse proxy, it will create a URL with <public_host>:<private port>, and pass this to Facebook, so Facebook will redirect back to the URL with the wrong port. Upgrading Rack requires upgrade to Rails 3.1. This temporary solution configures OmniAuth using a copy of the newer version of Rack::Request.
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