| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>Moving script elements between documents during evaluation</title> |
| <link rel="help" href="https://html.spec.whatwg.org/multipage/#execute-the-script-block"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <body> |
| <script id="outerScript"> |
| "use strict"; |
| |
| async_test(t => { |
| const outerScript = document.querySelector('#outerScript'); |
| assert_equals(document.currentScript, outerScript); |
| |
| const innerScript = document.createElement('script'); |
| window.innerScript = innerScript; |
| |
| window.innerScriptEvaluated = false; |
| window.anotherDocument = null; |
| |
| innerScript.innerText = ` |
| window.innerScriptEvaluated = true; |
| const innerScript = window.innerScript; |
| assert_equals(document.currentScript, innerScript, |
| '[1] Before move: currentScript of source Document'); |
| assert_equals(innerScript.ownerDocument, document, |
| '[1] Before move: ownerDocument'); |
| |
| window.anotherDocument = document.implementation.createHTMLDocument(); |
| window.anotherDocument.body.appendChild(innerScript); |
| |
| assert_equals(innerScript.ownerDocument, anotherDocument, |
| '[2] Just after move: ownerDocument'); |
| assert_equals(document.currentScript, innerScript, |
| '[2] Just after move: currentScript of source Document'); |
| assert_equals(anotherDocument.currentScript, null, |
| '[2] Just after move: currentScript of destination Document'); |
| `; |
| |
| document.body.appendChild(innerScript); |
| assert_true(window.innerScriptEvaluated, |
| 'Inner script should be evaluated synchronously'); |
| |
| assert_equals(document.currentScript, outerScript, |
| '[3] After inner script: currentScript of source Document'); |
| assert_equals(window.anotherDocument.currentScript, null, |
| '[3] After inner script: currentScript of destination Document'); |
| |
| t.step_timeout(() => { |
| assert_equals(document.currentScript, null, |
| '[4] After outer script: currentScript of source Document'); |
| assert_equals(anotherDocument.currentScript, null, |
| '[4] After outer script: currentScript of destination Document'); |
| t.done(); |
| }, 0); |
| }, 'Script moved between documents during evaluation'); |
| </script> |
