我正在尝试对GroupMe API进行API调用以获取
JSON响应,但一直收到以下错误:
- XMLHttpRequest cannot load ...(call url)...
- Request header field X-CSRFToken is not allowed by Access-Control-Allow-Headers in preflight response.
我的Javascript看起来像这样:
- var xmlhttp = new XMLHttpRequest();
- var url = (call url)
- xmlhttp.onreadystatechange = function() {
- if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
- xmlhttp.open("GET",url,true);
- xmlhttp.setRequestHeader("Access-Control-Allow-Headers","*");
- xmlhttp.setRequestHeader('Access-Control-Allow-Origin','*');
- $.getJSON(url,function(data){
- var array = data.response.messages.reverse();
- for(i = 0; i<array.length; i++){
- $('.messages').append("<div class='message'>"+array[i].name+":<br>"+array[i].text+"</div>");
- }
- });
- }
- }
- xmlhttp.open("GET",true);
- xmlhttp.send();