Facebook deprecated/ing (supposedly) adds script

fbds.js

/*1464382085,,JIT Construction: v2361294,en_US*/

/**
 * Copyright Facebook Inc.
 *
 * Licensed under the Apache License, Version 2.0
 * http://www.apache.org/licenses/LICENSE-2.0
 */
try {
    (function(a, b, c, d) {
        var e = a._fbq || (a._fbq = []);
        if (e.push !== Array.prototype.push) return;
        var f = /^\d+$/,
            g = 'https://www.facebook.com/tr/',
            h = {},
            i = [],
            j = c.href,
            k = b.referrer,
            l = a.top !== a;

        function m(v) {
            var w = [];
            for (var x = 0, y = v.length; x < y; x++) w.push(v[x][0] + '=' + encodeURIComponent(v[x][1]));
            return w.join('&');
        }

        function n(v, w) {
            var x = function() {
                if (v.detachEvent) {
                    v.detachEvent('onload', x);
                } else v.onload = null;
                w();
            };
            if (v.attachEvent) {
                v.attachEvent('onload', x);
            } else v.onload = x;
        }

        function o(v, w) {
            var x = 'fb' + Math.random().toString().replace('.', ''),
                y = b.createElement('form');
            y.method = 'post';
            y.action = v;
            y.target = x;
            y.acceptCharset = 'utf-8';
            y.style.display = 'none';
            var z = !!(a.attachEvent && !a.addEventListener),
                aa = z ? '<iframe name="' + x + '">' : 'iframe',
                ba = b.createElement(aa);
            ba.src = 'javascript:false';
            ba.id = x;
            ba.name = x;
            y.appendChild(ba);
            n(ba, function() {
                for (var ca = 0, da = w.length; ca < da; ca++) {
                    var ea = b.createElement('input');
                    ea.name = w[ca][0];
                    ea.value = w[ca][1];
                    y.appendChild(ea);
                }
                n(ba, function() {
                    y.parentNode.removeChild(y);
                });
                y.submit();
            });
            b.body.appendChild(y);
        }
        h.addPixelId = function(v) {
            i.push(v);
        };
        h.track = function(v, w) {
            var x = typeof v;
            if (x !== 'string' && x !== 'number') return false;
            if (f.test(v)) {
                p(null, v, w);
                return true;
            }
            for (var y = 0, z = i.length; y < z; y++) p(i[y], v, w);
            return i.length > 0;
        };

        function p(v, w, x) {
            var y = [];
            y.push(['id', v]);
            y.push(['ev', w]);
            y.push(['dl', j]);
            y.push(['rl', k]);
            y.push(['if', l]);
            y.push(['ts', new Date().valueOf()]);
            if (x && typeof x === 'object')
                for (var z in x)
                    if (x.hasOwnProperty(z)) {
                        var aa = x[z],
                            ba = aa === null ? 'null' : typeof aa;
                        if (ba in {
                                number: 1,
                                string: 1,
                                boolean: 1
                            }) {
                            y.push(['cd[' + encodeURIComponent(z) + ']', aa]);
                        } else if (ba === 'object') {
                            aa = typeof JSON === 'undefined' ? String(aa) : JSON.stringify(aa);
                            y.push(['cd[' + encodeURIComponent(z) + ']', aa]);
                        }
                    }
            var ca = m(y);
            if (2048 > (g + '?' + ca).length) {
                var da = new Image();
                da.src = g + '?' + ca;
            } else o(g, y);
        }
        var q = function(v) {
            if (Object.prototype.toString.call(v) !== '[object Array]') return false;
            var w = v.shift();
            if (!w) return false;
            var x = h[w];
            if (typeof x !== 'function') return false;
            if (a._fbds) {
                var y = a._fbds.pixelId;
                if (f.test(y)) {
                    i.push(y);
                    delete a._fbds.pixelId;
                }
            }
            return x.apply(h, v);
        };
        for (var r = 0, s = e.length; r < s; ++r) q(e[r]);
        e.push = q;
        if (e.disablePushState === true) return;
        if (!d.pushState || !d.replaceState) return;
        var t = function() {
                k = j;
                j = c.href;
                e.push(['track', 'PixelInitialized']);
            },
            u = function(v, w, x) {
                var y = v[w];
                v[w] = function() {
                    var z = y.apply(this, arguments);
                    x.apply(this, arguments);
                    return z;
                };
            };
        u(d, 'pushState', t);
        u(d, 'replaceState', t);
        a.addEventListener('popstate', t, false);
    })(window, document, location, history);
} catch (e) {
    new Image().src = "https:\/\/www.facebook.com\/" + 'common/scribe_endpoint.php?c=jssdk_error&m=' + encodeURIComponent('{"error":"LOAD", "extra": {"name":"' + e.name + '","line":"' + (e.lineNumber || e.line) + '","script":"' + (e.fileName || e.sourceURL || e.script) + '","stack":"' + (e.stackTrace || e.stack) + '","revision":"2361294","namespace":"FB","message":"' + e.message + '"}}');
}