1. fencedframeconfig api

2. fencedframeconfig api: setsharedstoragecontext

3. htmlfencedframeelement api

4. htmlfencedframeelement api: allow

5. htmlfencedframeelement api: config

6. htmlfencedframeelement api: height

7. htmlfencedframeelement api: sandbox

8. htmlfencedframeelement api: width

9. navigator api: canloadadauctionfencedframe

10. html element: fencedframe

11. html element: fencedframe: allow

12. html element: fencedframe: height

13. html element: fencedframe: width

14. headers http header: sec-fetch-dest: `fencedframe` value