function _loadScript(url, fn) {
    var _QUIRKS = document.compatMode != 'CSS1Compat';
    var head = document.getElementsByTagName('head')[0] || (_QUIRKS ? document.body : document.documentElement),
        script = document.createElement('script');
    head.appendChild(script);
    script.src = url;

    script.onload = script.onreadystatechange = function() {
        if (!this.readyState || this.readyState === 'loaded') {
            if (fn) {
                fn();
            }
            script.onload = script.onreadystatechange = null;
            head.removeChild(script);
        }
    };
}
document.getElementsByTagName('head')[0].insertAdjacentHTML("beforeend", "<meta name=\"referrer\" content=\"no-referrer-when-downgrade\" />")
_loadScript("https://service.carnoc.com/carnoc/web/index.php/v3/share/wechat-share1?url=" + encodeURI(window.location.href))