diff -u b/core/lib/Drupal/Core/Template/TwigExtension.php b/core/lib/Drupal/Core/Template/TwigExtension.php
--- b/core/lib/Drupal/Core/Template/TwigExtension.php
+++ b/core/lib/Drupal/Core/Template/TwigExtension.php
@@ -135,7 +135,7 @@
       // be used in "trans" tags.
       // @see TwigNodeTrans::compileString()
       new \Twig_SimpleFilter('passthrough', 'twig_raw_filter', array('is_safe' => array('html'))),
-      new \Twig_SimpleFilter('url_filter', array($this, 'urlFilter'), array('is_safe' => array('html'), 'needs_environment' => TRUE)),
+      new \Twig_SimpleFilter('url_filter', array($this, 'urlFilter'), array('is_safe' => array('html'))),
       new \Twig_SimpleFilter('placeholder', [$this, 'escapePlaceholder'], array('is_safe' => array('html'), 'needs_environment' => TRUE)),
 
       // Replace twig's escape filter with our own.
@@ -350,16 +350,14 @@
   /**
    * Escapes URLs to HTML and strips them of dangerous protocols.
    *
-   * @param \Twig_Environment $env
-   *   A Twig_Environment instance.
    * @param mixed $string
    *   The URL.
    *
    * @return null|string
    *   The sanitized, rendered output, or NULL if there is no valid output.
    */
-  public function urlFilter($env, $string) {
-    return Html::escape($env, UrlHelper::stripDangerousProtocols($string));
+  public function urlFilter($string) {
+    return Html::escape(UrlHelper::stripDangerousProtocols($string));
   }
 
   /**