| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <body> |
| <script> |
| test(() => { |
| let portal = document.createElement("portal"); |
| let xmlDoc = document.implementation.createDocument("", null); |
| xmlDoc.appendChild(portal); |
| }, "inserting a portal element into an XML document shouldn't crash or throw"); |
| |
| test(() => { |
| let iframe = document.createElement("iframe"); |
| document.body.appendChild(iframe); |
| let doc = iframe.contentDocument; |
| iframe.remove(); |
| let portal = document.createElement("portal"); |
| doc.body.appendChild(portal); |
| }, "inserting a portal element into a detached iframe's document shouldn't crash or throw"); |
| </script> |
| </body> |
