The object's state must be OPENED.?

Question

Uncaught DOMException: Failed to execute 'send' on 'XMLHttpRequest': The object's state must be OPENED.?本地加载没出现问题，放到服务器包以上错误。服务器上的js代码是放在php结构中是不是open方法执行有什么权限问题？？？var xhr = new XMLHttpRequest();    xhr.open('GET','http://192.168.1.249:90/consult/upload/series/5/raw20170818164225/fixed_image.raw', true);    xhr.responseType = 'arraybuffer';    xhr.onload = function (e) {        //code...        console.log("加载" + data.path + "成功")    };    xhr.send();