2 Fehler behoben:

1.  Internet Explorer unterstützung für <main> Tag ist fehlerhaft, wurde per CSS Definituon behoben.
2.  Templates für registrierung versehntlich gelöscht, wurden im membership Modul wieder hergestellt.

src/content/templates/content/article_archive.html

@@ -15,11 +15,11 @@
 
 {% block jumbotron_background %}{% if active_category %}{{ active_category.image.url }}{% else %}{{STATIC_URL}}img/teaser/{{current_top_page.slug}}.jpg{% endif %}{% endblock %}
 
-{% block teaser %}<h2>
+{% block teaser %}<h1>
    {% trans 'Article Archive' %}
    {% if active_category %} - {{active_category.name}}{% endif %}
    {% if month %}{{ month|date:'F Y' }}{% elif year %}{{year}}{% endif %}
-   </h2>
+   </h1>
     <div id="teaser_text">
         {% if active_category %}
         <p>{{ active_category.description }}</p>

src/content/templates/content/article_detail.html

@@ -17,7 +17,7 @@
 {% block itemscope %}itemscope itemtype="http://schema.org/Article"{% endblock %}
 
 {% block teaser %}
-<h2 itemprop="name">{{article.headline}}</h2>
+<h1 itemprop="name">{{article.headline}}</h1>
 <div id="teaser_text">
     <ul class="info">
         <li><span class="fa fa-user"></span> <strong>{% trans 'Author' %}:</strong> <a href="{% url 'membership-details' article.author %}" itemprop="author">{{article.author}}</a></li>

src/content/templates/content/page_form.html

@@ -14,7 +14,7 @@
 {% block jumbotron_background %}{{STATIC_URL}}img/teaser/edit_page.jpg{% endblock %}
 
 {% block teaser %}
-    {% if object.pk %}<h1>{{ page.title }}</h1>
+    {% if object.pk %}<h1>{% trans 'Edit' %}{{ page.title }}</h1>
     {% else %}<h1>{% trans "Add Page" %}</h1>
     {% endif %}
 {% endblock %}