suspended containers cannot be accessed

ipynbsrv/web/templates/web/snippets/container_grid.html

@@ -43,7 +43,7 @@
                     </button>
                     <ul class="dropdown-menu" role="menu" aria-labelledby="actions-container_1">
                         {% if ct.is_running %}
-                            {% if ct.backend_base_url %}
+                            {% if not ct.is_suspended and ct.backend_base_url %}
                                 <li role="presentation">
                                     <a role="menuitem" tabindex="-1" href="javascript:document.getElementById('connect-{{ ct.id }}').getElementsByTagName('button')[0].click();">Connect</a>
                                     <form id="connect-{{ ct.id }}" action="{{ ct.backend_base_url }}" method="GET" target="_blank" role="form">