diff --git a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/bag.html.twig b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/bag.html.twig
index d9ccadb21b..8947c9a6cb 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/bag.html.twig
+++ b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/bag.html.twig
@@ -7,10 +7,11 @@
     </thead>
     <tbody>
         {% for key in bag.keys|sort %}
-        <tr>
-            <th>{{ key }}</th>
-            <td>{{ bag.get(key)|json_encode }}</td>
-        </tr>
+            <tr>
+                <th>{{ key }}</th>
+                {# JSON_UNESCAPED_SLASHES = 64, JSON_UNESCAPED_UNICODE = 256 #}
+                <td>{{ bag.get(key)|json_encode(64 b-or 256) }}</td>
+            </tr>
         {% endfor %}
     </tbody>
 </table>
diff --git a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/table.html.twig b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/table.html.twig
index 06089edaba..1c5130dfba 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/table.html.twig
+++ b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/table.html.twig
@@ -9,7 +9,8 @@
         {% for key in data|keys|sort %}
             <tr>
                 <th>{{ key }}</th>
-                <td>{{ data[key]|json_encode }}</td>
+                {# JSON_UNESCAPED_SLASHES = 64, JSON_UNESCAPED_UNICODE = 256 #}
+                <td>{{ data[key]|json_encode(64 b-or 256) }}</td>
             </tr>
         {% endfor %}
     </tbody>