1 files changed, 44 insertions, 0 deletions
diff --git a/dom/workers/test/errorwarning_worker.js b/dom/workers/test/errorwarning_worker.js
new file mode 100644
index 0000000000..5c951fbede
--- /dev/null
+++ b/dom/workers/test/errorwarning_worker.js
@@ -0,0 +1,44 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function errorHandler() {
+  postMessage({ type: "error" });
+}
+
+onmessage = function (event) {
+  if (event.data.errors) {
+    try {
+      // This is an error:
+      postMessage({ type: "ignore", value: b.aaa });
+    } catch (e) {
+      errorHandler();
+    }
+  } else {
+    var a = {};
+    // This is a warning:
+    postMessage({ type: "ignore", value: a.foo });
+  }
+
+  if (event.data.loop != 0) {
+    var worker = new Worker("errorwarning_worker.js");
+    worker.onerror = errorHandler;
+    worker.postMessage({
+      loop: event.data.loop - 1,
+      errors: event.data.errors,
+    });
+
+    worker.onmessage = function (e) {
+      postMessage(e.data);
+    };
+  } else {
+    postMessage({ type: "finish" });
+  }
+};
+
+onerror = errorHandler;
+onerror = onerror;
+if (!onerror || onerror != onerror) {
+  throw "onerror wasn't set properly";
+}