This tests running the foster parent algorithm under a template element. WebKit should not hit any debug assertions.
| "\n"
| <template>
|   content
|     "\n        hello\n    "
|   <table>
|     "\n    "
|     <script>
|       "\n        document.querySelector('template').appendChild(document.querySelector('table'));\n    "
|     <caption>
|       "hello"
|     "\n    "
|     <tbody>
|       <tr>
|         "\n        "
|         <th>
|           <shadow>
|             "hello"
|         "\n    "
|       "\n    "
|       <tr>
|       "\n"
| "\n\n\n\n"