https://karriere.uniklinikum-leipzig.de/platform/js/widgets/reactWidgetLoader.js

1window['widgetLoaderComponents'] = [];
2
3// Callback function to execute when mutations are observed and if subtree/childlist change we remove ghosting
4const widgetLoadingCompleteCallback = (mutationList, observer) => {
5  for (const mutation of mutationList) {
6    if (mutation.type === "childList") {
7      document.removeChild(mutation.target);
8      observer.disconnect();
9    } else if (mutation.type === "subtree") {
10      document.removeChild(mutation.target);
11      observer.disconnect();
12    }
13  }
14  
15};
16
17/* Adding mutation observer to check if react component started rendering on dom 
18/* We need to removed ghosting div in callback */ 
19var addMutationObserver = function(widgetLoaderConfig){
20  if(document.getElementById(widgetLoaderConfig.widgetRenderId + "_ghosting")){
21    const targetNode = document.getElementById(widgetLoaderConfig.widgetRenderId + "_ghosting");
22    const config = {childList: true, subtree: true };
23
24    // Create an observer instance linked to the callback function
25    const observer = new MutationObserver(widgetLoadingCompleteCallback);
26
27    // Start observing the target node for configured mutations
28    observer.observe(targetNode, config);
29  }
30};
31
32removeGhosting = function(widgetRenderId){
33  if(document.getElementById(widgetRenderId + "_ghosting")){
34    document.getElementById(widgetRenderId + "_ghosting").remove();
35  }
36}
37var makeWidgetCall = function(widgetName, widgetConfig) {
38  try
39  { 
40    window["widget-loader"].get(widgetName).then((widget) => {
41      widget(widgetConfig);
42    }).catch(function(e) {
43      console.error(e);
44      removeGhosting(widgetConfig.widgetRenderId);
45    });
46  } catch(er){
47    console.error("Got error while loading widget, removing ghosting", er);
48    removeGhosting(widgetConfig.widgetRenderId);
49  }
50};
51
52window.onload = function() {
53  if(Array.isArray(window['widgetLoaderComponents'])) {
54    window['widgetLoaderComponents'].forEach(widgetLoaderConfig => {
55    addMutationObserver(widgetLoaderConfig);
56    makeWidgetCall(widgetLoaderConfig.widgetName, widgetLoaderConfig);
57    });
58  }
59};