1 files changed, 10 insertions, 0 deletions
diff --git a/dom/workers/test/test_navigator.js b/dom/workers/test/test_navigator.js
new file mode 100644
index 0000000000..c1eab3aa89
--- /dev/null
+++ b/dom/workers/test/test_navigator.js
@@ -0,0 +1,10 @@
+SimpleTest.waitForExplicitFinish();
+
+// This test loads in an iframe, to ensure that the navigator instance is
+// loaded with the correct value of the preference.
+SpecialPowers.pushPrefEnv({ set: [["dom.netinfo.enabled", true]] }, () => {
+  let iframe = document.createElement("iframe");
+  iframe.id = "f1";
+  iframe.src = "test_navigator_iframe.html";
+  document.body.appendChild(iframe);
+});