| <!DOCTYPE html> | |
| <script> | |
| function createNodeIterator() { | |
| function filter() { | |
| nodeIterator.dummyFilterCalled = true; | |
| return true; | |
| } | |
| const nodeIterator = parent.document.createNodeIterator(parent.document.body, NodeFilter.SHOW_ELEMENT, filter); | |
| nodeIterator.dummyFilterCalled = false; | |
| return nodeIterator; | |
| } | |
| </script> |