{% with messages = get_flashed_messages(with_categories=true) %}
  {% if messages %}
    {% for category, message in messages %}
      {% if category == 'track-page-view' %}
        <div data-analytics="trackPageView" data-url="{{ message }}"></div>
      {% elif category != 'must_login' and category != 'flag' %}  {# skip showing Flask's "Please log in" message; also skip "flag" messages intended for Google Analytics etc. #}
        <div class="flash-message-container {{ 'banner-destructive-without-action' if category == 'error' else 'banner-success-without-action' }}">
          <p class="banner-message">
            {# TODO remove the below special cases, once those two apps have been updated to contain the message. #}
            {% if message == 'supplier-role-required' %}  {# set by supplier app #}
              You must log in with a supplier account to see this page.

            {% elif message == 'buyer-role-required' %}  {# set by briefs app #}
              You must log in with a buyer account to see this page.

            {% else %}
              {{ message }}

            {% endif %}
          </p>
        </div>
      {% endif %}
    {% endfor %}
  {% endif %}
{% endwith %}