https://evh.de/assets/js/iframe-resizer-init-oJUEOep.js

1(function () {
2    'use strict';
3
4    var FALLBACK_VERSION = 'legacy';
5    var scriptTag = document.querySelector('script[data-iframe-resizer-license]');
6    var LICENSE = scriptTag ? scriptTag.getAttribute('data-iframe-resizer-license') : '';
7
8    var GLOBALS = {
9        legacy: ['iFrameResize'],
10        v5: ['iframeResize']
11    };
12
13    var pending = {};
14
15    function loadScript(src) {
16        if (pending[src]) {
17            return pending[src];
18        }
19
20        pending[src] = new Promise(function (resolve, reject) {
21            var script = document.createElement('script');
22            script.src = src;
23            script.async = true;
24            script.onload = resolve;
25            script.onerror = function () {
26                reject(new Error('Konnte ' + src + ' nicht laden.'));
27            };
28            document.head.appendChild(script);
29        });
30
31        return pending[src];
32    }
33
34    function resolveResizer(version) {
35        var names = GLOBALS[version] || GLOBALS[FALLBACK_VERSION];
36
37        for (var i = 0; i < names.length; i++) {
38            if (typeof window[names[i]] === 'function') {
39                return window[names[i]];
40            }
41        }
42
43        return null;
44    }
45
46    function init(wrapper) {
47        var id = wrapper.getAttribute('data-iframe-resizer-target');
48        var version = wrapper.getAttribute('data-iframe-resizer-version');
49        var license = wrapper.getAttribute('data-iframe-resizer-license');
50        var src = wrapper.getAttribute('data-iframe-resizer-src');
51        var iframe = wrapper.querySelector('iframe');
52
53        if (!iframe || !src) {
54            return;
55        }
56
57        loadScript(src).then(function () {
58            var resize = resolveResizer(version);
59
60            if (!resize) {
61                console.error('[iframe-resizer] Keine Init-Funktion gefunden (' + version + ', #' + id + ').');
62                return;
63            }
64
65            var options = { log: false };
66
67            if (license) {
68                options.license = license;
69            }
70
71            resize(options, iframe);
72        }).catch(function (error) {
73            console.error('[iframe-resizer] ' + error.message);
74        });
75    }
76
77    function boot() {
78        Array.prototype.forEach.call(
79            document.querySelectorAll('[data-iframe-resizer]'),
80            init
81        );
82    }
83
84    if (document.readyState === 'loading') {
85        document.addEventListener('DOMContentLoaded', boot);
86    } else {
87        boot();
88    }
89})();