Mark Twig content filter as HTML safe

lib/Pico.php

@@ -2098,7 +2098,9 @@ class Pico
             // this is the reason why we can't register this filter as part of PicoTwigExtension
             $pico = $this;
             $pages = &$this->pages;
-            $this->twig->addFilter(new Twig_SimpleFilter('content', function ($page) use ($pico, &$pages) {
+            $this->twig->addFilter(new Twig_SimpleFilter(
+                'content',
+                function ($page) use ($pico, &$pages) {
                     if (isset($pages[$page])) {
                         $pageData = &$pages[$page];
                         if (!isset($pageData['content'])) {
@@ -2108,7 +2110,9 @@ class Pico
                         return $pageData['content'];
                     }
                     return null;
-            }));
+                },
+                array('is_safe' => array('html'))
+            ));
 
             // trigger onTwigRegistration event
             $this->triggerEvent('onTwigRegistered', array(&$this->twig));