1 files changed, 43 insertions, 0 deletions
diff --git a/dom/base/test/script_bug602838.sjs b/dom/base/test/script_bug602838.sjs
new file mode 100644
index 0000000000..e3e7e3fde5
--- /dev/null
+++ b/dom/base/test/script_bug602838.sjs
@@ -0,0 +1,43 @@
+function setOurState(data) {
+  x = {
+    data,
+    QueryInterface(iid) {
+      return this;
+    },
+  };
+  x.wrappedJSObject = x;
+  setObjectState("bug602838", x);
+}
+
+function getOurState() {
+  var data;
+  getObjectState("bug602838", function (x) {
+    // x can be null if no one has set any state yet
+    if (x) {
+      data = x.wrappedJSObject.data;
+    }
+  });
+  return data;
+}
+
+function handleRequest(request, response) {
+  if (request.queryString) {
+    let blockedResponse = getOurState();
+    if (typeof blockedResponse == "object") {
+      blockedResponse.finish();
+      setOurState(null);
+    } else {
+      setOurState("unblocked");
+    }
+    return;
+  }
+  response.setHeader("Cache-Control", "no-cache", false);
+  response.setHeader("Content-Type", "text/javascript", false);
+  response.write(
+    "ok(asyncRan, 'Async script should have run first.'); firstRan = true;"
+  );
+  if (getOurState() != "unblocked") {
+    response.processAsync();
+    setOurState(response);
+  }
+}