features:
- name: autonomous-custom-elements
  files:
  - Document-importNode.html
  - Node-cloneNode.html
  - upgrading-enqueue-reactions.html
  - upgrading-parser-created-element.html
- name: customized-built-in-elements
  files:
  - Document-importNode-customized-builtins.html
  - Node-cloneNode-customized-builtins.html