Merge pull request #2410 from ionis-education-group/courseware-none-bodyclass

Add '' default to bodyclass in courseware templates

lms/templates/courseware/courseware.html

@@ -6,7 +6,7 @@
  <% return _("{course_number} Courseware").format(course_number=course.display_number_with_default) %>
 </%def>
 
-<%block name="bodyclass">courseware ${course.css_class}</%block>
+<%block name="bodyclass">courseware ${course.css_class or ''}</%block>
 <%block name="title"><title>
     % if section_title: 
 ${page_title_breadcrumbs(section_title, course_name())}

lms/templates/courseware/info.html

@@ -24,7 +24,7 @@ $(document).ready(function(){
   </script>
 </%block>
 
-<%block name="bodyclass">${course.css_class}</%block>
+<%block name="bodyclass">${course.css_class or ''}</%block>
 <section class="container">
   <div class="info-wrapper">
     % if user.is_authenticated():

lms/templates/courseware/static_tab.html

 <%inherit file="/main.html" />
-<%block name="bodyclass">${course.css_class}</%block>
+<%block name="bodyclass">${course.css_class or ''}</%block>
 <%namespace name='static' file='/static_content.html'/>
 
 <%block name="headextra">