diff --git a/dom/base/test/echo.sjs b/dom/base/test/echo.sjs
new file mode 100644
index 00000000000..6e3242c9f72
--- /dev/null
+++ b/dom/base/test/echo.sjs
@@ -0,0 +1,21 @@
+const CC = Components.Constructor;
+const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
+                             "nsIBinaryInputStream",
+                             "setInputStream");
+
+function handleRequest(request, response)
+{
+  response.setHeader("Content-Type", "text/plain");
+  if (request.method == "GET") {
+     response.write(request.queryString);
+     return;
+  }
+
+  var bodyStream = new BinaryInputStream(request.bodyInputStream);
+  var body = "";
+  var bodyAvail;
+  while ((bodyAvail = bodyStream.available()) > 0)
+    body += String.fromCharCode.apply(null, bodyStream.readByteArray(bodyAvail));
+  
+  response.write(body);
+}
diff --git a/dom/base/test/mochitest.ini b/dom/base/test/mochitest.ini
index 383e987a926..79b75df1063 100644
--- a/dom/base/test/mochitest.ini
+++ b/dom/base/test/mochitest.ini
@@ -56,6 +56,7 @@ support-files =
   bug819051.sjs
   copypaste.js
   delayedServerEvents.sjs
+  echo.sjs
   eventsource.resource
   eventsource.resource^headers^
   eventsource_redirect.resource
@@ -739,6 +740,7 @@ skip-if = toolkit == 'android'
 [test_xhr_forbidden_headers.html]
 [test_xhr_progressevents.html]
 skip-if = toolkit == 'android'
+[test_xhr_send.html]
 [test_xhr_send_readystate.html]
 [test_xhr_withCredentials.html]
 [test_file_from_blob.html]
diff --git a/dom/base/test/test_xhr_send.html b/dom/base/test/test_xhr_send.html
new file mode 100644
index 00000000000..7d8e1bae848
--- /dev/null
+++ b/dom/base/test/test_xhr_send.html
@@ -0,0 +1,83 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1096263
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1096263</title>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript">
+
+  /** Test for Bug 1096263 **/
+
+SimpleTest.waitForExplicitFinish();
+
+function simpleGetTest() {
+  var x = new XMLHttpRequest();
+  x.open("GET", "echo.sjs");
+  x.onload = function() {
+      ok(true, "Should have processed GET");
+      simplePostTest();
+    }
+  x.send({});
+}
+
+function simplePostTest() {
+  var x = new XMLHttpRequest();
+  x.open("POST", "echo.sjs");
+  x.onload = function() {
+      ise(x.responseText, "somedata", "Should have processed POST");
+      undefinedPostTest();
+    }
+    x.send({toString: function() { return "somedata"; }});
+}
+
+function undefinedPostTest() {
+  var x = new XMLHttpRequest();
+  x.open("POST", "echo.sjs");
+  x.onload = function() {
+      ise(x.responseText, "undefined", "Should have processed POST");
+      nullPostTest();
+    }
+    x.send({toString: function() { return undefined; }});
+}
+
+function nullPostTest() {
+  var x = new XMLHttpRequest();
+  x.open("POST", "echo.sjs");
+  x.onload = function() {
+      ise(x.responseText, "null", "Should have processed POST");
+      testExceptionInToString();
+    }
+    x.send({toString: function() { return null; }});
+}
+
+function testExceptionInToString() {
+  var x = new XMLHttpRequest();
+  x.open("GET", "echo.sjs");
+  x.onload = function() {
+    ok(false);
+    SimpleTest.finish();
+  }
+  try {
+    x.send({toString: function() { throw "dummy"; }});
+  } catch(ex) {
+    ise(ex, "dummy");
+    SimpleTest.finish();
+  }
+}
+
+  </script>
+</head>
+<body onload="simpleGetTest()">
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1096263">Mozilla Bug 1096263</a>
+<p id="display"></p>
+<div id="content">
+
+</div>
+<pre id="test">
+</pre>
+</body>
+</html>
