diff --git a/dom/workers/test/serviceworkers/mochitest.ini b/dom/workers/test/serviceworkers/mochitest.ini
index aaa955898c4..d0f642c2bb6 100644
--- a/dom/workers/test/serviceworkers/mochitest.ini
+++ b/dom/workers/test/serviceworkers/mochitest.ini
@@ -162,6 +162,8 @@ support-files =
   eventsource/*
   sw_clients/file_blob_upload_frame.html
   redirect_post.sjs
+  xslt_worker.js
+  xslt/*
 
 [test_app_protocol.html]
 skip-if = release_build
@@ -250,6 +252,7 @@ skip-if = toolkit == "android" || toolkit == "gonk"
 [test_workerupdatefoundevent.html]
 [test_opaque_intercept.html]
 [test_fetch_event_client_postmessage.html]
+[test_xslt.html]
 [test_escapedSlashes.html]
 [test_eventsource_intercept.html]
 [test_not_intercept_plugin.html]
diff --git a/dom/workers/test/serviceworkers/test_xslt.html b/dom/workers/test/serviceworkers/test_xslt.html
new file mode 100644
index 00000000000..be56f50865a
--- /dev/null
+++ b/dom/workers/test/serviceworkers/test_xslt.html
@@ -0,0 +1,113 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1182113 - Test service worker XSLT interception</title>
+  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+  var registration;
+  var worker;
+
+  function start() {
+    return navigator.serviceWorker.register("xslt_worker.js",
+                                            { scope: "./" })
+      .then((swr) => registration = swr);
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+  function getXmlString(xmlObject) {
+    serializer = new XMLSerializer();
+    return serializer.serializeToString(iframe.contentDocument);
+  }
+
+  function synthetic() {
+    content = document.getElementById("content");
+    ok(content, "parent exists.");
+
+    iframe = document.createElement("iframe");
+    content.appendChild(iframe);
+
+    iframe.setAttribute('src', "xslt/test.xml");
+
+    var p = new Promise(function(res, rej) {
+      iframe.onload = function(e) {
+        dump("Set request mode\n");
+        registration.active.postMessage("synthetic");
+        xmlString = getXmlString(iframe.contentDocument);
+        ok(!xmlString.includes("Error"), "Load synthetic cross origin XSLT should be allowed");
+        res();
+      };
+    });
+
+    return p;
+  }
+
+  function cors() {
+    var p = new Promise(function(res, rej) {
+      iframe.onload = function(e) {
+        xmlString = getXmlString(iframe.contentDocument);
+        ok(!xmlString.includes("Error"), "Load CORS cross origin XSLT should be allowed");
+        res();
+      };
+    });
+
+    registration.active.postMessage("cors");
+    iframe.setAttribute('src', "xslt/test.xml");
+
+    return p;
+  }
+
+  function opaque() {
+    var p = new Promise(function(res, rej) {
+      iframe.onload = function(e) {
+        xmlString = getXmlString(iframe.contentDocument);
+        ok(xmlString.includes("Error"), "Load opaque cross origin XSLT should not be allowed");
+        res();
+      };
+    });
+
+    registration.active.postMessage("opaque");
+    iframe.setAttribute('src', "xslt/test.xml");
+
+    return p;
+  }
+
+  function runTest() {
+     start()
+      .then(synthetic)
+      .then(opaque)
+      .then(cors)
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.interception.enabled", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/workers/test/serviceworkers/xslt/test.xml b/dom/workers/test/serviceworkers/xslt/test.xml
new file mode 100644
index 00000000000..83c7776339a
--- /dev/null
+++ b/dom/workers/test/serviceworkers/xslt/test.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/xsl" href="test.xsl"?>
+<result>
+  <Title>Example</Title>
+  <Error>Error</Error>
+</result>
diff --git a/dom/workers/test/serviceworkers/xslt/xslt.sjs b/dom/workers/test/serviceworkers/xslt/xslt.sjs
new file mode 100644
index 00000000000..db681ab5001
--- /dev/null
+++ b/dom/workers/test/serviceworkers/xslt/xslt.sjs
@@ -0,0 +1,12 @@
+function handleRequest(request, response) {
+  response.setHeader("Content-Type", "application/xslt+xml", false);
+  response.setHeader("Access-Control-Allow-Origin", "*");
+
+  var body = request.queryString;
+  if (!body) {
+    response.setStatusLine(null, 500, "Invalid querystring");
+    return;
+  }
+
+  response.write(unescape(body));
+}
diff --git a/dom/workers/test/serviceworkers/xslt_worker.js b/dom/workers/test/serviceworkers/xslt_worker.js
new file mode 100644
index 00000000000..bf9bdbc566b
--- /dev/null
+++ b/dom/workers/test/serviceworkers/xslt_worker.js
@@ -0,0 +1,52 @@
+var testType = 'synthetic';
+
+var xslt = "<?xml version=\"1.0\"?> " +
+           "<xsl:stylesheet version=\"1.0\"" +
+           "   xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\">" +
+           "  <xsl:template match=\"node()|@*\">" +
+           "    <xsl:copy>" +
+           "      <xsl:apply-templates select=\"node()|@*\"/>" +
+           "    </xsl:copy>" +
+           "  </xsl:template>" +
+           "  <xsl:template match=\"Error\"/>" +
+           "</xsl:stylesheet>";
+
+onfetch = function(event) {
+  if (event.request.url.includes('test.xsl')) {
+    if (testType == 'synthetic') {
+      if (event.request.mode != 'cors') {
+        event.respondWith(Response.error());
+        return;
+      }
+
+      event.respondWith(Promise.resolve(
+        new Response(xslt, { headers: {'Content-Type': 'application/xslt+xml'}})
+      ));
+    }
+    else if (testType == 'cors') {
+      if (event.request.mode != 'cors') {
+        event.respondWith(Response.error());
+        return;
+      }
+
+      var url = "http://example.com/tests/dom/workers/test/serviceworkers/xslt/xslt.sjs?" + escape(xslt);
+      event.respondWith(fetch(url, { mode: 'cors' }));
+    }
+    else if (testType == 'opaque') {
+      if (event.request.mode != 'cors') {
+        event.respondWith(Response.error());
+        return;
+      }
+
+      var url = "http://example.com/tests/dom/workers/test/serviceworkers/xslt/xslt.sjs?" + escape(xslt);
+      event.respondWith(fetch(url, { mode: 'no-cors' }));
+    }
+    else {
+      event.respondWith(Response.error());
+    }
+  }
+};
+
+onmessage = function(event) {
+  testType = event.data;
+};
