Defer auto start until DOM has loaded

README.md

@@ -9,7 +9,7 @@
 
 ### Direct download
 Download and install the latest distribution file from this
-Git repository and load it in your webpage. For production cases, we encourage you to download the minified version ([`foresight.min.js`](blob/master/dist/foresight.min.js))
+Git repository and load it in your webpage. For production cases, we encourage you to download the minified version ([`foresight.min.js`](dist/foresight.min.js))
 
 ```html
 <script src="/path/to/foresight.min.js"></script>

dist/foresight.js

@@ -153,9 +153,11 @@ var Foresight = /** @class */ (function () {
             });
         }, this.options.observerOptions);
         // Start tracking
-        if (!this.options.defer) {
-            this.start();
-        }
+        window.addEventListener('DOMContentLoaded', function () {
+            if (!_this.options.defer) {
+                _this.start();
+            }
+        });
     }
     /**
      * Start tracking all elements with tracking attributes for events.

src/foresight.ts

@@ -97,9 +97,9 @@ class Foresight {
     }, this.options.observerOptions);
 
     // Start tracking
-    if (!this.options.defer) {
-      this.start();
-    }
+    window.addEventListener('DOMContentLoaded', () => {
+      if (!this.options.defer) { this.start(); }
+    });
   }
 
   /**