$("#feedback-modals").html("<%= j render(partial: 'admins/feedbacks/history_form_modal', locals: {type: 'new_history'}) %>")
$(".feedback-history-change-modal").modal('show');
createMDEditor('feedback-history-email-editor', {width: 750, height: 300, placeholder: '请输入邮件正文',watch: false, imageUpload: false });