1. document.head

    Convenience property for accessing the `<head>` element

  2. htmltableelement api: createthead

  3. htmltableelement api: deletethead

  4. htmltableelement api: thead

  5. navigationpreloadmanager api: setheadervalue

  6. rtcrtptransceiver api: getheaderextensionstonegotiate

  7. rtcrtptransceiver api: setheaderextensionstonegotiate

  8. xmlhttprequest api: setrequestheader

  9. html element: thead

  10. html element: thead: align

  11. html element: thead: bgcolor

  12. html element: thead: char

  13. html element: thead: charoff

  14. html element: thead: valign