darobin/app.js

## app.js
var express = require('express')
;

var app = module.exports = express.createServer();
app.configure(function(){
    app.use(express.bodyParser());
    app.use(app.router);
    app.use(express["static"](__dirname + "/public"));
    app.use(express.errorHandler({ dumpExceptions: true, showStack: true }));
});

app.all("/delred", function (req, res, next) {
    console.log("Got request = " + req.method);
    if (req.method === "DELETE") res.redirect("/delred2");
    else res.send({ error: "Method was " + req.method });
});

app.all("/delred2", function (req, res, next) {
    console.log("Got request2 = " + req.method);
    if (req.method === "DELETE") res.send({ ok: true });
    else res.send({ error: "Method was " + req.method + " after redirect" });
});

app.listen(3000, function(){
    console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);
});

## public%3Adelred.js
(function () {
    function success () {
        document.body.bgColor = "#0f0";
    }

    function error (msg) {
        document.body.bgColor = "#f00";
        document.getElementById("error").textContent = msg;
    }

    function runDelRed () {
        console.log("running");
        var xhr = new XMLHttpRequest();
        xhr.open("DELETE", "/delred");
        xhr.onreadystatechange = function () {
            if (xhr.readyState === 4) {
                console.log(xhr.responseText);
                try {
                    var res = JSON.parse(xhr.responseText);
                    if (res.ok) success();
                    else error(res.error);
                }
                catch (e) {
                    error("Exception " + e);
                }
            }
        };
        xhr.send();
    }

    document.getElementById("delred").onclick = runDelRed;
}());

## public%3Aindex.html
<!DOCTYPE html>
<html lang='en'>
  <head>
    <meta charset='utf-8'>
    <title>DELETE test</title>
  </head>
  <body>
    <p>
      Click this to run the test: <button id='delred'>Delete Redirect</button>
    </p>
    <pre id='error'></pre>
  </body>
  <script src='delred.js'></script>
</html>
	var express = require('express')
	;

	var app = module.exports = express.createServer();
	app.configure(function(){
	app.use(express.bodyParser());
	app.use(app.router);
	app.use(express["static"](__dirname + "/public"));
	app.use(express.errorHandler({ dumpExceptions: true, showStack: true }));
	});

	app.all("/delred", function (req, res, next) {
	console.log("Got request = " + req.method);
	if (req.method === "DELETE") res.redirect("/delred2");
	else res.send({ error: "Method was " + req.method });
	});

	app.all("/delred2", function (req, res, next) {
	console.log("Got request2 = " + req.method);
	if (req.method === "DELETE") res.send({ ok: true });
	else res.send({ error: "Method was " + req.method + " after redirect" });
	});

	app.listen(3000, function(){
	console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);
	});
	(function () {
	function success () {
	document.body.bgColor = "#0f0";
	}

	function error (msg) {
	document.body.bgColor = "#f00";
	document.getElementById("error").textContent = msg;
	}

	function runDelRed () {
	console.log("running");
	var xhr = new XMLHttpRequest();
	xhr.open("DELETE", "/delred");
	xhr.onreadystatechange = function () {
	if (xhr.readyState === 4) {
	console.log(xhr.responseText);
	try {
	var res = JSON.parse(xhr.responseText);
	if (res.ok) success();
	else error(res.error);
	}
	catch (e) {
	error("Exception " + e);
	}
	}
	};
	xhr.send();
	}

	document.getElementById("delred").onclick = runDelRed;
	}());
	<!DOCTYPE html>
	<html lang='en'>
	<head>
	<meta charset='utf-8'>
	<title>DELETE test</title>
	</head>
	<body>
	<p>
	Click this to run the test: <button id='delred'>Delete Redirect</button>
	</p>
	<pre id='error'></pre>
	</body>
	<script src='delred.js'></script>
	</html>