<!doctype html> <meta charset=utf-8> <title>PaymentResponse.prototype.onpayerdetailschange attribute</title> <script src=/resources/testharness.js></script> <script src=/resources/testharnessreport.js></script> <script> test(() => { assert_equals(Object.getPrototypeOf(PaymentResponse), window.EventTarget); }, "PaymentResponse inherits from EventTarget"); test(() => { assert_true("onpayerdetailchange" in PaymentResponse.prototype); }, "PaymentResponse has an onpayerdetailchange in the prototype chain"); </script>