Reconnect to existing session

frontend/src/views/GroupSessionInput.vue

@@ -30,6 +30,10 @@
               ></b-form-input>
             </b-form-group>
           </b-col>
+          <b-col>
+            <b-button v-on:click="attemptReconnect()">Reconnect
+            </b-button>
+          </b-col>
         </b-row>
         <b-row v-for="(item, index) in scenarios" v-bind:key="index" class="border bottom-buffer">
           <b-col>
@@ -418,6 +422,16 @@ export default {
           }
         });
       });
+    },
+    attemptReconnect: function() {
+      var self = this;
+      Vue.axios.get(`/grpob/participant/${self.participant}`)
+      .then(function(response){
+        self.scenarios = response.data;
+      })
+      .catch(function(error){
+        console.log(error)
+      })
     }
   }
 };