diff --git a/client/utils/consoleUtils.js b/client/utils/consoleUtils.js
index 0f10eb9841..0794b2da90 100644
--- a/client/utils/consoleUtils.js
+++ b/client/utils/consoleUtils.js
@@ -28,14 +28,21 @@ export const hijackConsoleErrorsScript = (offs) => {
           var fileInfo = getScriptOff(lineNumber);
           data = msg + ' (' + fileInfo[1] + ': line ' + fileInfo[0] + ')';
         }
-        window.parent.postMessage([{
-          log: [{
-            method: 'error',
-            data: [data],
-            id: Date.now().toString()
-          }],
-          source: fileInfo[1]
-        }], '*');
+        window.parent.postMessage(
+          {
+            source: fileInfo[1],
+            messages: [
+              {
+                log: [
+                  {
+                    method: 'error',
+                    data: [data],
+                    id: Date.now().toString()
+                  }
+                ]
+              }
+            ]
+          }, '*');
       return false;
     };
     // catch rejected promises
@@ -44,14 +51,21 @@ export const hijackConsoleErrorsScript = (offs) => {
         var errorNum = event.reason.stack.split('about:srcdoc:')[1].split(':')[0];
         var fileInfo = getScriptOff(errorNum);
         var data = event.reason.message + ' (' + fileInfo[1] + ': line ' + fileInfo[0] + ')';
-        window.parent.postMessage([{
-          log: [{
-            method: 'error',
-            data: [data],
-            id: Date.now().toString()
-          }],
-          source: fileInfo[1]
-        }], '*');
+        window.parent.postMessage(
+          {
+            source: fileInfo[1],
+            messages: [
+              {
+                log: [
+                  {
+                    method: 'error',
+                    data: [data],
+                    id: Date.now().toString()
+                  }
+                ]
+              }
+            ]
+          }, '*');
       }
     };
   `;
@@ -62,7 +76,7 @@ export const startTag = '@fs-';
 
 export const getAllScriptOffsets = (htmlFile) => {
   const offs = [];
-  const hijackConsoleErrorsScriptLength = 52;
+  const hijackConsoleErrorsScriptLength = 66;
   const embeddedJSStart = 'script crossorigin=""';
   let foundJSScript = true;
   let foundEmbeddedJS = true;