1 files changed, 49 insertions, 0 deletions
diff --git a/devtools/client/netmonitor/test/browser_net_send-beacon-other-tab.js b/devtools/client/netmonitor/test/browser_net_send-beacon-other-tab.js
new file mode 100644
index 0000000000..900f5f48c8
--- /dev/null
+++ b/devtools/client/netmonitor/test/browser_net_send-beacon-other-tab.js
@@ -0,0 +1,49 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Tests if beacons from other tabs are properly ignored.
+ */
+
+add_task(async function () {
+  const { monitor, tab } = await initNetMonitor(SIMPLE_URL, {
+    requestCount: 1,
+  });
+  const { store, windowRequire } = monitor.panelWin;
+  const Actions = windowRequire("devtools/client/netmonitor/src/actions/index");
+  const { getSortedRequests } = windowRequire(
+    "devtools/client/netmonitor/src/selectors/index"
+  );
+
+  store.dispatch(Actions.batchEnable(false));
+
+  const beaconTab = await addTab(SEND_BEACON_URL);
+  info("Beacon tab added successfully.");
+
+  is(
+    store.getState().requests.requests.length,
+    0,
+    "The requests menu should be empty."
+  );
+
+  const wait = waitForNetworkEvents(monitor, 1);
+  await SpecialPowers.spawn(beaconTab.linkedBrowser, [], async function () {
+    content.wrappedJSObject.performRequests();
+  });
+  await reloadBrowser({ browser: tab.linkedBrowser });
+  await wait;
+
+  is(
+    store.getState().requests.requests.length,
+    1,
+    "Only the reload should be recorded."
+  );
+  const request = getSortedRequests(store.getState())[0];
+  is(request.method, "GET", "The method is correct.");
+  is(request.status, "200", "The status is correct.");
+
+  await removeTab(beaconTab);
+  return teardown(monitor);
+});