<!DOCTYPE html> <title>Test that documentPictureInPicture.requestWindow() rejects from a PiP window</title> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="/resources/testdriver.js"></script> <script src="/resources/testdriver-vendor.js"></script> <body> <script> promise_test(async (t) => { await test_driver.bless('request PiP window from top window'); const pipWindow = await documentPictureInPicture.requestWindow(); await test_driver.bless('request PiP window from PiP window', pipWindow); await promise_rejects_dom(t, 'NotAllowedError', pipWindow.DOMException, pipWindow.documentPictureInPicture.requestWindow()); }); </script> </body>