XMLHttpRequest不断返回null

Question

So my code is calling for a file on my server "zom3.ms3d" which I have confirmed is there, and you can too, along with all the source code for this. (http://www.pso2u.com)

This is the code in question:

function getMs3dModel(model, name){
        var xhr = new XMLHttpRequest();
        xhr.open('GET', name, true);
        xhr.responseType = 'arraybuffer';
        xhr.onload = function(e) {
            parseBinFile(model, name, this.response);
        };
        xhr.send();
    }

And this is where it prints the contents (or first 10 bytes of it)

function parseBinFile(model, name, buffer){

        var headerStr = new DataView(buffer, 0, 10);  
        console.log(headerStr);
    }

Why is my request coming back null?

Answer 1

尝试使用xhr.response而不是this.reponse ，如MDN文章所建议的那样

Answer 2

What browser are you using? xhr.onload is part of XMLHttpRequest Level 2. Here is the list of browsers supporting it: http://caniuse.com/xhr2

Your code looks good, though I would use xhr.response , not this.response (I generally avoid 'this' these days).