WIN10 IIS10 下ajax 报404错误，在XMLHttpRequest send的时候报错：Failed to load resource: the server responded with a status of 404 (Not Found)
代码示例如下：
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>
你好，AJAX!
</title>
</head>
<body>
<h1 id="myh1">点击以下按钮修改内容</h1>
<button onclick="run()">RUN</button>
</body>
<script>
function run(){
var xhr = new XMLHttpRequest();
xhr.onreadystatechange= ()=>{
if(xhr.readyState==4 && xhr.status==200){
console.log('请求已完成且响应已就绪');
var myh1 = document.getElementById("myh1");
myh1.textContent = xhr.responseText;
}
}
xhr.addEventListener('readystatechange',()=>{
console.log('readyState属性改变了');
});
xhr.open('GET','<url>',true); //url是指你请求资源的目标地址
xhr.send();
}
</script>
</html>
