1 files changed, 13 insertions, 0 deletions
diff --git a/testing/mochitest/tests/Harness_sanity/specialPowers_framescript.js b/testing/mochitest/tests/Harness_sanity/specialPowers_framescript.js
new file mode 100644
index 0000000000..efc017099b
--- /dev/null
+++ b/testing/mochitest/tests/Harness_sanity/specialPowers_framescript.js
@@ -0,0 +1,13 @@
+/* eslint-env mozilla/chrome-script */
+
+var permChangedObs = {
+  observe(subject, topic, data) {
+    if (topic == "perm-changed") {
+      var permission = subject.QueryInterface(Ci.nsIPermission);
+      var msg = { op: data, type: permission.type };
+      sendAsyncMessage("perm-changed", msg);
+    }
+  },
+};
+
+Services.obs.addObserver(permChangedObs, "perm-changed");