Fix autotrack

dist/foresight.js

@@ -153,11 +153,15 @@ var Foresight = /** @class */ (function () {
             });
         }, this.options.observerOptions);
         // Start tracking
-        window.addEventListener('DOMContentLoaded', function () {
-            if (!_this.options.defer) {
-                _this.start();
+        if (!this.options.defer) {
+            var domContentLoaded = document.readyState === 'complete' || document.readyState === 'interactive';
+            if (domContentLoaded) {
+                this.start();
+            }
+            else {
+                window.addEventListener('DOMContentLoaded', function () { return _this.start(); });
+            }
         }
-        });
     }
     /**
      * Start tracking all elements with tracking attributes for events.
@@ -257,9 +261,7 @@ var Foresight = /** @class */ (function () {
     Foresight.prototype._trackClicks = function (element) {
         var _this = this;
         // Define listen fucntion
-        var listener = function (e) {
-            _this._onTrackedClick(element, e);
-        };
+        var listener = function (e) { return _this._onTrackedClick(element, e); };
         element.addEventListener('click', listener);
         element.addEventListener('auxclick', listener);
         return function () {

src/foresight.ts

@@ -97,9 +97,14 @@ class Foresight {
     }, this.options.observerOptions);
 
     // Start tracking
-    window.addEventListener('DOMContentLoaded', () => {
-      if (!this.options.defer) { this.start(); }
-    });
+    if (!this.options.defer) {
+      const domContentLoaded = document.readyState === 'complete' || document.readyState === 'interactive';
+      if (domContentLoaded) {
+        this.start()
+      } else {
+        window.addEventListener('DOMContentLoaded', () => this.start());
+      }
+    }
   }
 
   /**
@@ -215,9 +220,7 @@ class Foresight {
    */
   private _trackClicks(element: Element): Function {
     // Define listen fucntion
-    const listener = (e) => {
-      this._onTrackedClick(element, e);
-    };
+    const listener = (e) => this._onTrackedClick(element, e);
 
     element.addEventListener('click', listener);
     element.addEventListener('auxclick', listener);