1. Datalist element

    Method of setting a list of options for a user to select in a text field, while leaving the ability to enter a custom value.

  2. dataset & data-* attributes

    Method of applying and accessing custom data to elements.

  3. Media Source Extensions

    API allowing media data to be accessed from HTML `video` and `audio` elements.

  4. Pointer Lock API

    API that provides access to raw mouse movement data. This is done by ignoring boundaries resulting from screen edges where the cursor can't go beyond, providing proper control for first person or real time strategy games.

  5. getUserMedia/Stream API

    Method of accessing external device data (such as a webcam video stream). Formerly this was envisioned as the <device> element.

  6. characterdata api: nextelementsibling

  7. characterdata api: previouselementsibling

  8. datatransfer api: addelement

  9. htmlcanvaselement api: todataurl

  10. htmlcanvaselement api: todataurl: `type` parameter supports `"image/webp"`

  11. htmldataelement api

  12. htmldataelement api: value

  13. htmldatalistelement api

  14. htmldatalistelement api: options

  15. htmlelement api: dataset

  16. htmlformelement api: `formdata` event

  17. htmlinputelement api: showpicker: `datalist` input

  18. htmlmediaelement api: `loadeddata` event

  19. htmlmediaelement api: `loadedmetadata` event

  20. htmlmediaelement api: mozgetmetadata

  21. htmlobjectelement api: data

  22. mathmlelement api: dataset

  23. svgelement api: dataset

  24. svgmetadataelement api

  25. html element: base: href: `data:` and `javascript:` urls are not allowed

  26. html element: data

  27. html element: data: value

  28. html element: object: data

  29. svg element: metadata

  30. svg element: use: load from `data:` uri