Fixed handling of incorrect JSONs

Frontend/assets/scripts/tools/mock/uianimation.js

@@ -88,10 +88,13 @@ async function formatJSON(json) {
     
     var result = await fetch(request).then(response => {
         return response.text().then(function (text) {
-            return JSON.parse(text);
+            var json = JSON.parse(text);
+            json.status = response.status;
+            return json;
         });
         
     });
+    console.log(result);
     return result;
 }
 
@@ -127,8 +130,14 @@ function showRequestBody(element){
     switch(historyJson[element.id].headers["content-type"]){
         case "application/json":{
             formatJSON(historyRequestBody).then(function(result) {
-                popupContent.innerText = result.data;
-                highlightSyntax('code-highlight-content');
+                
+                if (result.status == "200") {
+                    popupContent.innerText = result.data;
+                    highlightSyntax('code-highlight-content');
+                }
+                else {
+                    popupContent.innerText = historyRequestBody;
+                }
             });
             break;
         }