diff --git a/library/Icinga/Application/webrouter.php b/library/Icinga/Application/webrouter.php
index 47210808e..d9ab30b4a 100644
--- a/library/Icinga/Application/webrouter.php
+++ b/library/Icinga/Application/webrouter.php
@@ -63,13 +63,11 @@ if (in_array($path, $special)) {
             exit;
 
         case 'js/icinga.dev.js':
-            $forIe11 = (bool) preg_match('/Trident\/7.0;.*rv:11/', $_SERVER['HTTP_USER_AGENT']);
-            JavaScript::send(false, $forIe11);
+            JavaScript::send();
             exit;
 
         case 'js/icinga.min.js':
-            $forIe11 = (bool) preg_match('/Trident\/7.0;.*rv:11/', $_SERVER['HTTP_USER_AGENT']);
-            JavaScript::sendMinified($forIe11);
+            JavaScript::sendMinified();
             break;
 
         default:
diff --git a/library/Icinga/Web/JavaScript.php b/library/Icinga/Web/JavaScript.php
index 7d0eed8ec..1257ab73a 100644
--- a/library/Icinga/Web/JavaScript.php
+++ b/library/Icinga/Web/JavaScript.php
@@ -53,9 +53,9 @@ class JavaScript
         'js/define.js'
     ];
 
-    public static function sendMinified($forIe11 = false)
+    public static function sendMinified()
     {
-        self::send(true, $forIe11);
+        self::send(true);
     }
 
     /**
@@ -65,7 +65,7 @@ class JavaScript
      *
      * @param   bool    $minified   Whether to compress the client side script code
      */
-    public static function send($minified = false, $forIe11 = false)
+    public static function send($minified = false)
     {
         header('Content-Type: application/javascript');
         $basedir = Icinga::app()->getBootstrapDirectory();
@@ -91,11 +91,9 @@ class JavaScript
             $files[] = $filePath;
         }
 
-        if (! $forIe11) {
-            // Prepare library file list
-            foreach (Icinga::app()->getLibraries() as $library) {
-                $files = array_merge($files, $library->getJsAssets());
-            }
+        // Prepare library file list
+        foreach (Icinga::app()->getLibraries() as $library) {
+            $files = array_merge($files, $library->getJsAssets());
         }
 
         // Prepare core file list
@@ -151,28 +149,26 @@ class JavaScript
             $baseJs .= file_get_contents($file) . "\n\n\n";
         }
 
-        if (! $forIe11) {
-            // Library files need to be namespaced first before they can be included
-            foreach (Icinga::app()->getLibraries() as $library) {
-                foreach ($library->getJsAssets() as $file) {
-                    $alreadyMinified = false;
-                    if ($minified && file_exists(($minFile = substr($file, 0, -3) . '.min.js'))) {
-                        $alreadyMinified = true;
-                        $file = $minFile;
-                    }
+        // Library files need to be namespaced first before they can be included
+        foreach (Icinga::app()->getLibraries() as $library) {
+            foreach ($library->getJsAssets() as $file) {
+                $alreadyMinified = false;
+                if ($minified && file_exists(($minFile = substr($file, 0, -3) . '.min.js'))) {
+                    $alreadyMinified = true;
+                    $file = $minFile;
+                }
 
-                    $content = self::optimizeDefine(
-                        file_get_contents($file),
-                        $file,
-                        $library->getJsAssetPath(),
-                        $library->getName()
-                    );
+                $content = self::optimizeDefine(
+                    file_get_contents($file),
+                    $file,
+                    $library->getJsAssetPath(),
+                    $library->getName()
+                );
 
-                    if ($alreadyMinified) {
-                        $out .= ';' . ltrim(trim($content), ';') . "\n";
-                    } else {
-                        $js .= $content . "\n\n\n";
-                    }
+                if ($alreadyMinified) {
+                    $out .= ';' . ltrim(trim($content), ';') . "\n";
+                } else {
+                    $js .= $content . "\n\n\n";
                 }
             }
         }
diff --git a/public/js/helpers.js b/public/js/helpers.js
index 306d02925..bcb273629 100644
--- a/public/js/helpers.js
+++ b/public/js/helpers.js
@@ -1,11 +1,5 @@
 /*! Icinga Web 2 | (c) 2014 Icinga Development Team | GPLv2+ */
 
-/* IE11 Polyfills */
-
-if (window.NodeList && !NodeList.prototype.forEach) {
-    NodeList.prototype.forEach = Array.prototype.forEach;
-}
-
 /* jQuery Plugins */
 (function ($) {