https://ver.movistarplus.es/js/yomvi/polyfill.js?m=1788497367

1if (typeof Object.assign != 'function') {
2  Object.assign = function(target, varArgs) {
3    'use strict';
4    if (target == null) { // TypeError if undefined or null
5      throw new TypeError('Cannot convert undefined or null to object');
6    }
7    var to = Object(target);
8    for (var index = 1; index < arguments.length; index++) {
9      var nextSource = arguments[index];
10      if (nextSource != null) {
11        for (var nextKey in nextSource) {
12          if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) {
13            to[nextKey] = nextSource[nextKey];
14          }
15        }
16      }
17    }
18    return to;
19  };
20}
21
22const isString = function (val){
23    return (typeof val === 'string' ? true : false);
24};
25const isBlob = function (val){
26    return  (val instanceof Blob ? true : false);
27};
28
29polyfill.call(typeof window === 'object' ? window : this || {});
30
31function polyfill () {
32    if (!('navigator' in this)) {
33        this.navigator = {};
34    }
35
36    if (typeof this.navigator.sendBeacon !== 'function') {
37        this.navigator.sendBeacon = sendBeacon.bind(this);
38    }
39}
40
41function sendBeacon (url, data) {
42    const event = this.event && this.event.type;
43    const sync = event === 'unload' || event === 'beforeunload';
44    const xhr = ('XMLHttpRequest' in this) ? new XMLHttpRequest() : new ActiveXObject('Microsoft.XMLHTTP');
45    xhr.open('POST', url, !sync);
46    xhr.withCredentials = true;
47    xhr.setRequestHeader('Accept', '*/*');
48
49    if (isString(data)) {
50        xhr.setRequestHeader('Content-Type', 'text/plain;charset=UTF-8');
51        xhr.responseType = 'text';
52    } else if (isBlob(data) && data.type) {
53        xhr.setRequestHeader('Content-Type', data.type);
54    }
55
56    try {
57        xhr.send(data);
58    } catch (error) {
59        return false;
60    }
61
62    return true;
63}