django前後端不分離專案中ajax與csrf問題，加入這個js檔案（親測有效）

function getCookie(name) {
let cookieValue = null;
if (document.cookie && document.cookie !== '') {
const cookies = document.cookie.split(';');
for (let i = 0; i < cookies.length; i++) {
const cookie = cookies[i].trim();
// Does this cookie string begin with the name we want?
if (cookie.substring(0, name.length + 1) === (name + '=')) {
cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
break;
}
}
}
return cookieValue;
}

function csrfSafeMethod(method){
return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method))
}

$.ajaxSetup({
beforeSend:function(xhr,settings){
if(!csrfSafeMethod(settings.type)){
xhr.setRequestHeader("X-CSRFTOKEN",getCookie('csrftoken'));
}
}
})