| <!DOCTYPE html> | |
| This test passes if it does not crash. | |
| <script> | |
| var doc1 = document.documentElement; | |
| let iframe1 = document.createElement("iframe"); | |
| doc1.appendChild(iframe1); | |
| separateDoc = document.implementation.createDocument("", null); | |
| iframe1.addEventListener("DOMFocusOut", function () { separateDoc.adoptNode(iframe1); }); | |
| iframe1.focus(); | |
| iframe1 = document.createElement("iframe"); | |
| doc1.appendChild(iframe1); | |
| iframe1.focus(); | |
| </script> |