Set missed_deadlines in the course outlines template to simplify the logic in the dates_banner.html

openedx/features/course_experience/templates/course_experience/course-outline-fragment.html

@@ -27,7 +27,7 @@ dates_banner_displayed = False
 %>
 <main role="main" class="course-outline" id="main" tabindex="-1">
     <div class="dates-banner-wrapper">
-        % if enrollment_mode and relative_dates_flag_is_enabled and self_paced and not is_course_staff:
+        % if relative_dates_flag_is_enabled and self_paced and not is_course_staff:
             <%include file="/dates_banner.html" />
         % endif
     </div>

openedx/features/course_experience/views/course_outline.py

@@ -112,6 +112,9 @@ class CourseOutlineFragmentView(EdxFragmentView):
             user=request.user,
             course_key=course_key
         )
+        # We use javascript to check whether to actually display this banner, so we let the banner assume
+        # that deadlines have been missed.
+        context['missed_deadlines'] = True
 
         html = render_to_string('course_experience/course-outline-fragment.html', context)
         return Fragment(html)