Address ticket #180 here since that problem is so hard to discover wh…

…en you run into it. If there was an error, people would search for the error text, but there isn't.

README.md

@@ -363,6 +363,12 @@ By default, `node-http-proxy` will set a 100 socket limit for all `host:port` pr
 1. By passing the `maxSockets` option to `httpProxy.createServer()`
 2. By calling `httpProxy.setMaxSockets(n)`, where `n` is the number of sockets you with to use. 
 
+## POST requests and buffering
+
+express.bodyParser will interfere with proxying of POST requests (and other methods that have a request 
+body). They'll never sending anything to the upstream server, and the original client will just hang. 
+See https://github.com/nodejitsu/node-http-proxy/issues/180 for options.
+
 ## Using node-http-proxy from the command line
 When you install this package with npm, a node-http-proxy binary will become available to you. Using this binary is easy with some simple options: