JAVASCRIPT

javascript delete cookie

function deleteCookie(name) {
  document.cookie = name + '=; expires=Thu, 01 Jan 1970 00:00:01 GMT;';
}

delete cookies by domain javascript

document.cookie = 'my_cookie=; path=/; domain=.example.com; expires=' + new Date(0).toUTCString();

js delete cookie by name

var removing = browser.cookies.remove(
  details               // object
)