javascript - jquery ajax 报错

Question

在学一个粘贴上传的小例子，发现ajax部分会报这样的错误

求解!

Answer 1

不合法的調用

In your code you are assigning a native method to a property of custom object. When you call support.animationFrame(function () {}) , it is executed in the context of current object (ie support). For the native requestAnimationFrame function to work properly, it must be executed in the context of window

http://stackoverflow.com/questions/9677985/uncaught-typeerror-illegal-...

故查下所有的 native 函數賦值，加上一個 bind 即可。

Answer 2

看看在哪一行报错。

Answer 3

php//使用FormData 供参考
function uploadfile(){
    var fd = new FormData();
    fd.append("file", document.getElementById('file').files[0]);
    var xhr = new XMLHttpRequest();
    xhr.upload.addEventListener("progress", uploadProgress, false);
    xhr.open("POST", "/upload");
    xhr.send(fd);
}
function uploadProgress(){
//
}