don't use is_ajax

src/c3nav/site/templates/site/about.html

@@ -3,7 +3,7 @@
 
 {% block content %}
 <main class="account">
-    {% if not request.mobileclient and not request.is_ajax %}
+    {% if not request.mobileclient and not ajax %}
         <a href="{% url 'site.index' %}" class="float-right">&laquo; {% trans 'back to c3nav' %}</a>
     {% endif %}
     <h2>{% trans 'About c3nav' %}</h2>

src/c3nav/site/views.py

@@ -192,7 +192,8 @@ def qr_code(request, path):
 
 
 def close_response(request):
-    ajax = request.is_ajax() or 'ajax' in request.GET
+    # todo: use a better way to recognize this
+    ajax = request.headers.get('x-requested-with') == 'XMLHttpRequest' or 'ajax' in request.GET
     if ajax:
         return HttpResponse(json.dumps(get_user_data(request), cls=DjangoJSONEncoder).encode(),
                             content_type='text/plain')
@@ -355,6 +356,7 @@ def choose_language(request):
 @never_cache
 def about_view(request):
     return render(request, 'site/about.html', {
+        'ajax': request.headers.get('x-requested-with') == 'XMLHttpRequest' or 'ajax' in request.GET,
         'address': settings.IMPRINT_ADDRESS,
         'patrons': settings.IMPRINT_PATRONS,
         'team': settings.IMPRINT_TEAM,