1 files changed, 15 insertions, 0 deletions
diff --git a/netwerk/test/browser/browser_bug1535877.js b/netwerk/test/browser/browser_bug1535877.js
new file mode 100644
index 0000000000..0bd0a98d11
--- /dev/null
+++ b/netwerk/test/browser/browser_bug1535877.js
@@ -0,0 +1,15 @@
+"use strict";
+
+add_task(_ => {
+  try {
+    Cc["@mozilla.org/network/effective-tld-service;1"].createInstance(
+      Ci.nsISupports
+    );
+  } catch (e) {
+    is(
+      e.result,
+      Cr.NS_ERROR_XPC_CI_RETURNED_FAILURE,
+      "Component creation as an instance fails with expected code"
+    );
+  }
+});