1 files changed, 20 insertions, 0 deletions
diff --git a/devtools/client/netmonitor/test/browser_net_leak_on_tab_close.js b/devtools/client/netmonitor/test/browser_net_leak_on_tab_close.js
new file mode 100644
index 0000000000..318a644d5c
--- /dev/null
+++ b/devtools/client/netmonitor/test/browser_net_leak_on_tab_close.js
@@ -0,0 +1,20 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Tests that netmonitor doesn't leak windows on parent-side pages (bug 1285638)
+ */
+
+add_task(async function () {
+  // Tell initNetMonitor to enable cache. Otherwise it will assert that there were more
+  // than zero network requests during the page load. But when loading about:config,
+  // there are none.
+  const { monitor } = await initNetMonitor("about:config", {
+    enableCache: true,
+    requestCount: 1,
+  });
+  ok(monitor, "The network monitor was opened");
+  await teardown(monitor);
+});