1. htmlmetaelement api: httpequiv

  2. html element: meta: http-equiv

  3. html element: meta: http-equiv: content-language

  4. html element: meta: http-equiv: content-security-policy

  5. html element: meta: http-equiv: content-type

  6. html element: meta: http-equiv: refresh

  7. html element: meta: http-equiv: set-cookie