construct-in-detached-frame.window.js

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This WPT test may be referenced by the following Test IDs:
- /fetch/api/request/multi-globals/construct-in-detached-frame.window.html - WPT Dashboard Interop Dashboard

// This is a regression test for Chromium issue https://crbug.com/1427266.

test(() => {

  const iframe = document.createElement('iframe');

  document.body.append(iframe);

  const otherRequest = iframe.contentWindow.Request;

  iframe.remove();

  const r1 = new otherRequest('resource', { method: 'POST', body: 'string' });

  const r2 = new otherRequest(r1);

  assert_true(r1.bodyUsed);

  assert_false(r2.bodyUsed);

}, 'creating a request from another request in a detached realm should work');