1 files changed, 80 insertions, 0 deletions
diff --git a/netwerk/cookie/test/browser/browser_broadcastChannel.js b/netwerk/cookie/test/browser/browser_broadcastChannel.js
new file mode 100644
index 0000000000..ee561e6f0c
--- /dev/null
+++ b/netwerk/cookie/test/browser/browser_broadcastChannel.js
@@ -0,0 +1,80 @@
+// BroadcastChannel is not considered part of CookieJar. It's not allowed to
+// communicate with other windows with different cookie jar settings.
+"use strict";
+
+CookiePolicyHelper.runTest("BroadcastChannel", {
+  cookieJarAccessAllowed: async w => {
+    new w.BroadcastChannel("hello");
+    ok(true, "BroadcastChannel be used");
+  },
+
+  cookieJarAccessDenied: async w => {
+    try {
+      new w.BroadcastChannel("hello");
+      ok(false, "BroadcastChannel cannot be used!");
+    } catch (e) {
+      ok(true, "BroadcastChannel cannot be used!");
+      is(e.name, "SecurityError", "We want a security error message.");
+    }
+  },
+});
+
+CookiePolicyHelper.runTest("BroadcastChannel in workers", {
+  cookieJarAccessAllowed: async w => {
+    function nonBlockingCode() {
+      new BroadcastChannel("hello");
+      postMessage(true);
+    }
+
+    let blob = new w.Blob([
+      nonBlockingCode.toString() + "; nonBlockingCode();",
+    ]);
+    ok(blob, "Blob has been created");
+
+    let blobURL = w.URL.createObjectURL(blob);
+    ok(blobURL, "Blob URL has been created");
+
+    let worker = new w.Worker(blobURL);
+    ok(worker, "Worker has been created");
+
+    await new w.Promise((resolve, reject) => {
+      worker.onmessage = function (e) {
+        if (e) {
+          resolve();
+        } else {
+          reject();
+        }
+      };
+    });
+  },
+
+  cookieJarAccessDenied: async w => {
+    function blockingCode() {
+      try {
+        new BroadcastChannel("hello");
+        postMessage(false);
+      } catch (e) {
+        postMessage(e.name == "SecurityError");
+      }
+    }
+
+    let blob = new w.Blob([blockingCode.toString() + "; blockingCode();"]);
+    ok(blob, "Blob has been created");
+
+    let blobURL = w.URL.createObjectURL(blob);
+    ok(blobURL, "Blob URL has been created");
+
+    let worker = new w.Worker(blobURL);
+    ok(worker, "Worker has been created");
+
+    await new w.Promise((resolve, reject) => {
+      worker.onmessage = function (e) {
+        if (e) {
+          resolve();
+        } else {
+          reject();
+        }
+      };
+    });
+  },
+});