1 files changed, 49 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_about_protocol.js b/netwerk/test/unit/test_about_protocol.js
new file mode 100644
index 0000000000..7fc6d63c1e
--- /dev/null
+++ b/netwerk/test/unit/test_about_protocol.js
@@ -0,0 +1,49 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+var unsafeAboutModule = {
+  QueryInterface: ChromeUtils.generateQI(["nsIAboutModule"]),
+  newChannel(aURI, aLoadInfo) {
+    var uri = Services.io.newURI("about:blank");
+    let chan = Services.io.newChannelFromURIWithLoadInfo(uri, aLoadInfo);
+    chan.owner = Services.scriptSecurityManager.getSystemPrincipal();
+    return chan;
+  },
+  getURIFlags(aURI) {
+    return Ci.nsIAboutModule.URI_SAFE_FOR_UNTRUSTED_CONTENT;
+  },
+};
+
+var factory = {
+  createInstance(aIID) {
+    return unsafeAboutModule.QueryInterface(aIID);
+  },
+  QueryInterface: ChromeUtils.generateQI(["nsIFactory"]),
+};
+
+function run_test() {
+  let registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
+  let classID = Services.uuid.generateUUID();
+  registrar.registerFactory(
+    classID,
+    "",
+    "@mozilla.org/network/protocol/about;1?what=unsafe",
+    factory
+  );
+
+  let aboutUnsafeChan = NetUtil.newChannel({
+    uri: "about:unsafe",
+    loadUsingSystemPrincipal: true,
+  });
+
+  Assert.equal(
+    null,
+    aboutUnsafeChan.owner,
+    "URI_SAFE_FOR_UNTRUSTED_CONTENT channel has no owner"
+  );
+
+  registrar.unregisterFactory(classID, factory);
+}