XMLHttpRequest 将 POST 更改为 OPTION

我有这个代码:

net.requestXHR = function() {
    this.xhr = null;
    if(window.XMLHttpRequest === undefined) {
        window.XMLHttpRequest = function() {
            try {
                // Use the latest version of the activex object if available
                this.xhr = new ActiveXObject("Msxml2.XMLHTTP.6.0");
            }
            catch(e1) {
                try {
                    // Otherwise fall back on an older version
                    this.xhr = new ActiveXObject("Mxsml2.XMLHTTP.3.0");
                }
                catch(e2) {
                    //Otherwise, throw an error
                    this.xhr = new Error("Ajax not supported in your browser");
                }
            }
        };
    }
    else
        this.xhr = new XMLHttpRequest();
}
net.requestXHR.prototype.post = function(url, data) {
    if(this.xhr != null) {
        this.xhr.open("POST", url);
        this.xhr.setRequestHeader("Content-Type", "application/json");
        this.xhr.send(data);
    }
}

    var rs = new net.requestSpeech();
    console.log(JSON.stringify(interaction));
    rs.post("http://localhost:8111", JSON.stringify(interaction));

当发送执行时，我有这个日志:

OPTIONS http://localhost:8111/ [HTTP/1.1 405 Method Not Allowed 74ms]