dom/serviceworkers/test/close_test.js


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function ok(v, msg) {
  client.postMessage({ status: "ok", result: !!v, message: msg });
}

var client;
onmessage = function(e) {
  if (e.data.message == "start") {
    self.clients.matchAll().then(function(clients) {
      client = clients[0];
      try {
        close();
        ok(false, "close() should throw");
      } catch (ex) {
        ok(
          ex.name === "InvalidAccessError",
          "close() should throw InvalidAccessError"
        );
      }
      client.postMessage({ status: "done" });
    });
  }
};