Merge pull request #1 from wingify/bug-fix-exception-thrown

Fix for "Exception thrown" issue

metadata.yaml

@@ -1,6 +1,8 @@
 homepage: "https://vwo.com"
 documentation: "https://help.vwo.com/hc/en-us/articles/15595250852761-Integrating-VWO-with-Google-Tag-Manager-GTM-"
 versions:
+  - sha: 8ae4c61994fc222336429a81488e362e08ad8a41
+    changeNotes: Fixes "Exception thrown" issue in the template.
   - sha: 264b1b27955c14f79c4f3be12b4203fce3cecda1
     changeNotes: Support for default GTM events added.
   - sha: 8a0304ad457219a2c6b1d9ac4d0c05b3fdd7c69d

template.tpl

@@ -71,6 +71,7 @@ ___SANDBOXED_JS_FOR_WEB_TEMPLATE___
 const copyFromDataLayer = require("copyFromDataLayer");
 const copyFromWindow = require("copyFromWindow");
 const createQueue = require("createQueue");
+const getType = require("getType");
 
 function isEventNameReserved(eventName) {
   const defaultEvents = ["gtm.dom", "gtm.load", "gtm.js"];
@@ -101,7 +102,7 @@ function isPropertyExcluded(property) {
 
 function findObjectByProperty(array, property, value) {
   for (let i = 0; i < array.length; i++) {
-    if (array[i][property] === value) {
+    if (array[i] && getType(array[i]) == 'object' && array[i][property] === value) {
       return array[i];
     }
   }
@@ -116,6 +117,7 @@ function getCurrentEventObject() {
     "gtm.uniqueEventId",
     eventID
   );
+  
   if (!object || !object.event) { 
     return null;
   }
@@ -164,7 +166,7 @@ function buildVwoPayload(obj) {
 }
 
 const DLObject = getCurrentEventObject();
-if (DLObject) {
+if (DLObject != null) {
   const VWOPayload = buildVwoPayload(DLObject);
   if (VWOPayload) {
     const vwoPush = createQueue("VWO");