远程表格：真正的authenticity_token消失

Question

如果我将remote：true设置为true，则authenticity_token消失。我必须在表单中添加authenticity_token：true吗？缓存呢？如果我缓存表单，则必须添加authenticity_token：是吗？是否存在authenticity_token缓存的问题？谢谢

Answer 1

您是否在应用中使用jquery-rails gem？这会将CSRF令牌自动添加到remote: true AJAX表单提交中：

https://github.com/rails/jquery-rails/blob/master/vendor/assets/javascripts/jquery_ujs.js#L69

// Make sure that every Ajax request sends the CSRF token
CSRFProtection: function(xhr) {
  var token = rails.csrfToken();
  if (token) xhr.setRequestHeader('X-CSRF-Token', token);
}