Update paul.js

IE 11 fixes

paul.js

 <script type="text/javascript">
 // // // // //
-// Version 2019/11/14 by Wema
+// Version 2020/01/15 by Wema
 // // // // //
 var headers1 = document.getElementsByTagName('h1');
 var headers2 = document.getElementsByTagName('h2');
@@ -22,10 +22,20 @@ function getCourseHome(){
     }
   }
 }
+function getUrlVars() {
+  var vars = {};
+  var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m,key,value) {
+    vars[key] = value;
+  });
+  return vars;
+}
+var urlParams = getUrlVars();
+
 function getSearchParam(param){
-  var myurl = new URL(location.href);
-  return (myurl.searchParams.get(param) === null) ? 0 : myurl.searchParams.get(param);
+  return typeof urlParams[param] !== "undefined" ? urlParams[param] : 0;
 }
+
+  
 // https://stackoverflow.com/questions/4793604/how-to-insert-an-element-after-another-element-in-javascript-without-using-a-lib
 function insertAfter(referenceNode, newNode) {
   referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
@@ -165,8 +175,8 @@ setTimeout(function(){
   var placeholder2 = "/placeholder";
 
   for (var i in divs) {
-    if (typeof divs[i].style !== 'undefined'){
-      if (typeof divs[i].style.backgroundImage !== 'undefined'){
+    if (typeof divs[i].style !== "undefined"){
+      if (typeof divs[i].style.backgroundImage !== "undefined"){
         if (divs[i].style.backgroundImage.indexOf(placeholder2)>=0){
           placeholder1 = parseInt(divs[i].style.backgroundImage.split(placeholder0)[1]);
           var rand = Math.floor(Math.random() * imgs.length);
@@ -181,9 +191,8 @@ setTimeout(function(){
 
 /* Voma Start: Gibt es diese idnumber nicht? Weiterleitung zur Erstellung */
 if(location.href.indexOf("view.php?idnumber=")>=0){
-  var divs = document.getElementsByTagName('div');
-  for (var i in divs) {
-    if(divs[i].dataset.rel == "fatalerror"){
+   var errorDiv = document.querySelector("[data-rel='fatalerror']");
+   if(errorDiv!=null) {
       var idnumber = parseInt(getSearchParam("idnumber"));
       var mac = getSearchParam("mac");
       var abra = murl+"/abra/?usr=2&zid="+idnumber+"&mac="+mac;
@@ -200,15 +209,14 @@ if(location.href.indexOf("view.php?idnumber=")>=0){
         btn1 = 'Continue'; btn2 = 'Cancel';
         document.title = 'Create / connect a new PAUL course';
       }
-      divs[i].innerHTML = msg;
+      errorDiv.innerHTML = msg;
       var input = document.getElementsByTagName("button");
       for (var i in input) {
         if(input[i].innerHTML == btn1){
           input[i].innerHTML = btn2;
         }
       }
-    }
-  }
+   }  
 }
 /* Voma Start: Gibt es diese idnumber nicht? Weiterleitung zur Erstellung */
 
@@ -241,7 +249,7 @@ setTimeout(function(){
   var enrolmenticons = document.getElementsByClassName("enrolmenticons");
 
   for (var i in enrolmenticons) {
-    if (typeof enrolmenticons[i].innerHTML !== 'undefined'){
+    if (typeof enrolmenticons[i].innerHTML !== "undefined"){
       if(enrolmenticons[i].innerHTML.trim() == ""){
         if(document.documentElement.lang == "en"){
           enrolmenticons[i].innerHTML = '<i class="card-text">Manual enrolments (restricted)</i>';
@@ -358,15 +366,6 @@ if (document.body.id == 'page-course-view-remuiformat') {
 }
 /* Wema Ende: Expand collapsible course-sections by url (from Edwiser) */
 
-/* Wema Start: IE11 Redirect */
-var isIE11 = !!navigator.userAgent.match(/Trident.*rv\:11\./);
-var faqPage = '/mod/glossary/showentry.php?courseid=3&eid=271&displayformat=dictionary';
-if(isIE11 && (window.location.pathname + window.location.search + window.location.hash)!=faqPage) {
- window.location.href = murl + faqPage;
-}
-/* Wema Ende: IE11 Redirect */
-
-
 /* Wema Start: Remove link from group-icon in edit mode */
 if(isCoursePage()){
   var icoTitle = {
@@ -383,14 +382,22 @@ if(isCoursePage()){
       en: 'No groups'
     }
   };
-  for (var icoClassName of Object.keys(icoTitle)) {
+  Object.keys(icoTitle).forEach(function (icoClassName, icoClassIndex) {
     var nodeAnchor = document.getElementsByClassName(icoClassName+' menu-action cm-edit-action');
     if(nodeAnchor.length>0) {
       for(var j=nodeAnchor.length; j>0; j--) {
         nodeAnchor[j-1].outerHTML = nodeAnchor[j-1].innerHTML.replace('class=', 'title="'+icoTitle[icoClassName][document.documentElement.lang]+'" class=');
       }
     }
-  }
+  });
 }
 /* Wema Ende: Remove link from group-icon in edit mode */
+
+/* Wema Start: IE11 Redirect */
+var isIE11 = !!navigator.userAgent.match(/Trident.*rv\:11\./);
+var faqPage = '/mod/glossary/showentry.php?courseid=3&eid=271&displayformat=dictionary';
+if(isIE11 && (window.location.pathname + window.location.search + window.location.hash)!=faqPage) {
+ window.location.href = murl + faqPage;
+}
+/* Wema Ende: IE11 Redirect */
 </script>
\ No newline at end of file