1 files changed, 49 insertions, 0 deletions
diff --git a/toolkit/components/extensions/test/mochitest/file_slowed_document.sjs b/toolkit/components/extensions/test/mochitest/file_slowed_document.sjs
new file mode 100644
index 0000000000..8c42fcc966
--- /dev/null
+++ b/toolkit/components/extensions/test/mochitest/file_slowed_document.sjs
@@ -0,0 +1,49 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=2 et tw=80 ft=javascript: */
+"use strict";
+
+// This script slows the load of an HTML document so that we can reliably test
+// all phases of the load cycle supported by the extension API.
+
+/* eslint-disable no-unused-vars */
+
+const URL = "file_slowed_document.sjs";
+
+const DELAY = 2 * 1000; // Delay two seconds before completing the request.
+
+let nsTimer = Components.Constructor(
+  "@mozilla.org/timer;1",
+  "nsITimer",
+  "initWithCallback"
+);
+
+let timer;
+
+function handleRequest(request, response) {
+  response.processAsync();
+
+  response.setHeader("Content-Type", "text/html", false);
+  response.setHeader("Cache-Control", "no-cache", false);
+  response.write(`<!DOCTYPE html>
+    <html lang="en">
+    <head>
+      <meta charset="UTF-8">
+      <title></title>
+    </head>
+    <body>
+  `);
+
+  // Note: We need to store a reference to the timer to prevent it from being
+  // canceled when it's GCed.
+  timer = new nsTimer(
+    () => {
+      if (request.queryString.includes("with-iframe")) {
+        response.write(`<iframe src="${URL}?r=${Math.random()}"></iframe>`);
+      }
+      response.write(`</body></html>`);
+      response.finish();
+    },
+    DELAY,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
+}