RuCaptcha.com and html2canvas.hertzen.com

RuCaptcha.js

function rucaptcha(obj, callback) {
    obj.ready(function () {
        console.log("Capture captcha...");
        obj.html2canvas({
            allowTaint: true,
            onrendered: function (canvas) {
                var captcha = canvas.toDataURL("image/png");
                console.log("Send to decode captcha...");
                $.post("http://rucaptcha.com/in.php", "method=base64&key={API_KEY}&body=" + encodeURI(captcha), function (res) {
                    console.log(res);
                    var res_arr = res.split("|");
                    if (res_arr[0] === "OK") {
                        console.log("Check result...");
                        var repeat = setInterval(function () {
                            $.get("http://rucaptcha.com/res.php", "key={API_KEY}&action=get&id=" + encodeURI(res_arr[1]), function (res) {
                                console.log(res);
                                if (res[0] === "E") {
                                    clearInterval(repeat);
                                    callback(res);
                                }
                                var res_arr = res.split("|");
                                if (res_arr[0] === "OK") {
                                    clearInterval(repeat);
                                    callback(res_arr[1]);
                                }
                            });
                        }, 3000);
                    }
                });
            }
        });
    });
}
 
// Use
rucaptcha($("#id_object"), function (res) {
    console.log(res);
});