https://www.wohnen.at/_resources/app/themes/main/lib/htmlloader.js?m=1759859490

1class HtmlLoader {
2
3    load(url, selector) {
4        return fetch(url, {
5            headers: {
6                'x-selector': selector
7            }
8        }).then(function (response) {
9            try{
10                if(window.AnalyticsManager){
11                    window.AnalyticsManager.recordFromAjax(response);
12                }
13            }catch(e){
14                console.error(e);
15            }
16
17            if (!response.ok) {
18                throw Error();
19            }
20            return response.text();
21        }).then(function (html) {
22            return new Promise((resolve, reject) => {
23                const parser = new DOMParser();
24                const loadedDocument = parser.parseFromString(html, 'text/html');
25                const styles = loadedDocument.querySelectorAll('link[rel="stylesheet"]');
26
27                styles.forEach(function (style) {
28                    const src = style.getAttribute('href');
29                    if (!src) {
30                        console.debug('Skip inline style')
31                        return;
32                    }
33                    if (document.querySelector('link[href="' + src + '"]')) {
34                        console.debug('Already loaded: ' + src);
35                        return;
36                    }
37                    console.info('Load stylesheet: ' + src);
38                    document.head.append(style);
39                });
40
41                let scriptPendings = 0;
42                const scriptLoaded = function () {
43                    scriptPendings--;
44                    if (scriptPendings === 0) {
45                        const titleNode = loadedDocument.querySelector('title');
46                        const title = titleNode ? titleNode.innerText : undefined;
47
48                        try{
49                            if(window.AnalyticsManager){
50                                window.AnalyticsManager.pageView(url, title);
51                            }
52                        }catch(e){
53                            console.error(e);
54                        }
55
56                        resolve({
57                            title: title,
58                            node: loadedDocument.querySelector(selector),
59                            doc: loadedDocument
60                        });
61                    }
62                }
63                const scripts = loadedDocument.querySelectorAll('script');
64                scripts.forEach(function (script) {
65                    const src = script.getAttribute('src');
66                    if (!src) {
67                        console.debug('Skip inline script')
68                        return;
69                    }
70                    if (document.querySelector('script[src="' + src + '"]')) {
71                        console.debug('Already loaded: ' + src);
72                        return;
73                    }
74                    scriptPendings++;
75                    console.info('Load script: ' + src);
76
77                    const newScript = document.createElement("script");
78                    newScript.async = false;
79                    newScript.onload = function(){
80                        scriptLoaded();
81                    };
82                    newScript.onerror = function(){
83                        console.error('Error while loading ' + url);
84                    };
85                    document.head.appendChild(newScript);
86                    newScript.src = src;
87                });
88
89                if (scriptPendings === 0) {
90                    scriptPendings = 1;
91                    scriptLoaded();
92                }
93            });
94        });
95
96    }
97
98}
99
100window.HtmlLoader = HtmlLoader;