diff --git a/templates/post.twig b/templates/post.twig
index b19f50137205b770e024d1206a5aab92ae719c09..90d763da57e9275907ce5380d85bf12f6a0f4803 100644
--- a/templates/post.twig
+++ b/templates/post.twig
@@ -1,9 +1,9 @@
 <!DOCTYPE html>
 <html>
   <head>
-    <meta charset="utf-8"/>
-    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
-    <meta http-equiv="Content-Security-Policy" content="default-src 'self'; style-src 'unsafe-inline'"/>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <meta http-equiv="Content-Security-Policy" content="default-src 'self'; style-src 'unsafe-inline'">
     <link rel="icon" href="/{{ baseurlpath }}resources/icons/favicon.ico">
     <title>{% trans %}Sending message{% endtrans %}</title>
     <script src="/{{ baseurlpath }}resources/post.js"></script>
@@ -15,16 +15,16 @@
           https://developer.mozilla.org/en/DOM/form.submit#Specification
        #}
 
-      <input type="submit" id="postLoginSubmitButton" style="display: none"/>
+      <input type="submit" id="postLoginSubmitButton" style="display: none">
       {%- for name, value in post %}
         {%- if value is iterable %}
           {%- for index, item in value %}
 
-      <input type="hidden" name="{{ name }}[{{ index }}]" value="{{ value }}"/>
+      <input type="hidden" name="{{ name }}[{{ index }}]" value="{{ value }}">
           {%- endfor %}
         {%- else %}
 
-      <input type="hidden" name="{{ name }}" value="{{ value }}"/>
+      <input type="hidden" name="{{ name }}" value="{{ value }}">
         {%- endif %}
       {%- endfor %}