// META: title=realm of Response arrayBuffer() 'use strict'; promise_test(async () => { await new Promise(resolve => { onload = resolve; }); let iframe = document.createElement('iframe'); document.body.appendChild(iframe); iframe.srcdoc = ''; await new Promise(resolve => { iframe.onload = resolve; }); let otherRealm = iframe.contentWindow; let ab = await window.Response.prototype.arrayBuffer.call(new otherRealm.Response('')); assert_true(ab instanceof otherRealm.ArrayBuffer, "ArrayBuffer should be created in receiver's realm"); assert_false(ab instanceof ArrayBuffer, "ArrayBuffer should not be created in the arrayBuffer() methods's realm"); }, 'realm of the ArrayBuffer from Response arrayBuffer()');