1 files changed, 58 insertions, 0 deletions
diff --git a/dom/workers/test/multi_sharedWorker_manager.js b/dom/workers/test/multi_sharedWorker_manager.js
new file mode 100644
index 0000000000..c0a9455ef1
--- /dev/null
+++ b/dom/workers/test/multi_sharedWorker_manager.js
@@ -0,0 +1,58 @@
+var query = window.location.search;
+var bc = new BroadcastChannel("bugSharedWorkerLiftetime" + query);
+bc.onmessage = msgEvent => {
+  var msg = msgEvent.data;
+  var command = msg.command;
+  if (command == "postToWorker") {
+    postToWorker(msg.workerMessage);
+  } else if (command == "navigate") {
+    window.location = msg.location;
+  } else if (command == "finish") {
+    bc.postMessage({ command: "finished" });
+    bc.close();
+    window.close();
+  }
+};
+
+window.onload = () => {
+  bc.postMessage({ command: "loaded" });
+};
+
+function debug(message) {
+  if (typeof message != "string") {
+    throw new Error("debug() only accepts strings!");
+  }
+  bc.postMessage({ command: "debug", message });
+}
+
+let worker;
+
+function postToWorker(msg) {
+  if (!worker) {
+    worker = new SharedWorker(
+      "multi_sharedWorker_sharedWorker.js",
+      "FrameWorker"
+    );
+    worker.onerror = function (error) {
+      debug("Worker error: " + error.message);
+      error.preventDefault();
+
+      let data = {
+        type: "error",
+        message: error.message,
+        filename: error.filename,
+        lineno: error.lineno,
+        isErrorEvent: error instanceof ErrorEvent,
+      };
+      bc.postMessage({ command: "fromWorker", workerMessage: data });
+    };
+
+    worker.port.onmessage = function (message) {
+      debug("Worker message: " + JSON.stringify(message.data));
+      bc.postMessage({ command: "fromWorker", workerMessage: message.data });
+    };
+  }
+
+  debug("Posting message: " + JSON.stringify(msg));
+  worker.port.postMessage(msg);
+}