https://www.skatteetaten.no/globalassets/system/js/nettlesersjekk.js

1(function() {
2  function gaaVidere() {
3    // nettleser er godkjent, så vi kan tillate oss litt mer
4    var url = window.location.href;
5    var queryParamStart = url.indexOf('?');
6    var queryparams = url.substring(queryParamStart)
7      .replace('?', '')
8      .split('&')
9      .reduce(function(obj, paramSet) {
10        var split = paramSet.split('=');
11        obj[split[0]] = split[1];
12        return obj;
13      }, {});
14
15    if (!queryparams.redirectUrl) {
16      console.log('Sjekk ok, mangler redirectUrl');
17    }
18    
19    var decodedUri = decodeURIComponent(queryparams.redirectUrl);
20    var url = new URL(decodedUri);
21    var hostname = url.hostname;
22
23    const domains = ["skatteetaten.no", "sits.no", "skead.no"];
24
25    const domainsRegex = ("(" + domains.join(")|(") + ")").replaceAll(".", "\\.");
26
27    const checkDomainRegex = new RegExp("^(" + domainsRegex + ")$");
28    const checkSubDomainRegex = new RegExp("^.*\\.(" + domainsRegex + ")$");
29
30    if((checkDomainRegex.test(hostname) || checkSubDomainRegex.test(hostname)) 
31      && (url.protocol === 'http:' || url.protocol === 'https:')) 
32    {
33      var uri, hash;
34      if (decodedUri.indexOf('#/') !== -1) {
35        uri = decodedUri.substr(0, decodedUri.indexOf('#/'));
36        hash = decodedUri.substr(decodedUri.indexOf('#/'));
37      } else {
38        uri = decodedUri;
39      }
40
41      var harQueryParams = uri.includes('?');
42
43      const redirectTil = uri +
44        (harQueryParams ? '&' : '?') +
45        'nettlesersjekkok=true' +
46        (hash ? hash : '');
47  
48      window.location.href = redirectTil;
49    }
50    else 
51    {
52      console.log("Ugyldig redirectUrl eller protokoll");
53      window.location.href = 'https://www.skatteetaten.no/';
54      return;
55    }
56  }
57
58  function gaaTilFeilside(feature) {
59    console.log('Mangler støtte for ' + feature + ', går til feilside');
60
61    window.location.href = 'https://www.skatteetaten.no/system/nettlesersjekk?rules=' + feature;
62  }
63
64  if (typeof Object === 'undefined' || !Object.entries) {
65    gaaTilFeilside('Object.entries');
66    return;
67  }
68
69  var modernizr = window.Modernizr;
70  var rules = Object.entries(modernizr)
71  for (var i = 0; i < rules.length; i++) {
72    var key = rules[i][0];
73    var value = rules[i][1];
74
75    if (!value) {
76      gaaTilFeilside(key);
77      return;
78    }
79  }
80
81  gaaVidere();
82})();