diff --git a/src/Assets.php b/src/Assets.php
index 7a58a60..29b59fd 100644
--- a/src/Assets.php
+++ b/src/Assets.php
@@ -116,7 +116,7 @@ public function css()
         $output        = '';
 
         foreach ($cssCollection as $key => $value) {
-            $output .= '<link '.$this->formatAttributes($value['attributes']+['rel'=>'stylesheet']).'href="'.$value['asset'].'">'."\n";
+            $output .= '<link rel="stylesheet" '.$this->formatAttributes($value['attributes']).'href="'.$value['asset'].'">'."\n";
         }
 
         return $output;
@@ -133,7 +133,7 @@ public function js()
         $output       = '';
 
         foreach ($jsCollection as $key => $value) {
-            $output .= '<script '.$this->formatAttributes($value['attributes']+['type'=>'text/javascript']).'src="'.$value['asset'].'"></script>'."\n";
+            $output .= '<script type="text/javascript" '.$this->formatAttributes($value['attributes']).'src="'.$value['asset'].'"></script>'."\n";
         }
 
         return $output;
@@ -147,7 +147,7 @@ public function js()
      */
     protected function isAsset($asset)
     {
-        return is_string($asset) && preg_match('/.\.(css|js|ico)$/i', $asset);
+        return preg_match('/.\.(css|js)$/i', (string)$asset);
     }
 
     /**
@@ -158,7 +158,7 @@ protected function isAsset($asset)
      */
     protected function isJs($asset)
     {
-        return is_string($asset) && preg_match('/.\.js$/i', $asset);
+        return preg_match('/.\.js$/i', (string)$asset);
     }
 
     /**
@@ -169,7 +169,7 @@ protected function isJs($asset)
      */
     protected function isCss($asset)
     {
-        return is_string($asset) && preg_match('/.\.(css|ico)$/i', $asset);
+        return preg_match('/.\.css$/i', (string)$asset);
     }
 
     /**
@@ -180,7 +180,7 @@ protected function isCss($asset)
      */
     protected function isBonsai($asset)
     {
-        return is_array($asset) || (is_string($asset) && preg_match('/bonsai\.json$/i', $asset));
+        return is_array($asset) || preg_match('/bonsai\.json$/i', (string)$asset);
     }
 
     /**
@@ -196,7 +196,6 @@ public function add($assets, $namespace = null)
         }
 
         $cleanAsset = self::cleanAsset($assets);
-
         if (! $this->isAsset($cleanAsset)) {
             $this->lastAddedAsset = '';
 
@@ -212,13 +211,6 @@ public function add($assets, $namespace = null)
         if (! in_array($cleanAsset, $collection)) {
             $collection[$assets] = is_array($namespace) ? $namespace : ['namespace'  => $namespace];
 
-            if ($type === 'css' && preg_match('/.\.ico$/i', $cleanAsset)) {
-                $collection[$assets]['attributes'] = ($collection[$assets]['attributes'] ?? []) + [
-                    'rel'=>'icon',
-                    'type'=>'image/x-icon'
-                ];
-            }
-
             $this->collection->put($type, $collection);
         }
 
@@ -247,28 +239,6 @@ private static function cleanAsset($asset)
         return $asset;
     }
 
-    /**
-     * Return the remainder of a string after the last occurrence of a given value.
-     *
-     * @param  string  $subject
-     * @param  string  $search
-     * @return string
-     */
-    public static function afterLast($subject, $search)
-    {
-        if ($search === '') {
-            return $subject;
-        }
-
-        $position = strrpos($subject, (string) $search);
-
-        if ($position === false) {
-            return $subject;
-        }
-
-        return substr($subject, $position + strlen($search));
-    }
-
     /**
      * Parse a bonsai.json file and add the assets to the collection.
      *