catch promise rejection when user submits a message to group. fixes #…

…10970 (#10978)

* catch promise rejection when user submits a message to group

* switch response exception handling to try/catch to avoid mixing aysnc/await with promises

website/client/components/groups/chat.vue

@@ -124,12 +124,22 @@
       async sendMessage () {
         if (this.sending) return;
         this.sending = true;
-        let response = await this.$store.dispatch('chat:postChat', {
-          group: this.group,
-          message: this.newMessage,
-        });
-        this.group.chat.unshift(response.message);
-        this.newMessage = '';
+        let response;
+
+        try {
+          response = await this.$store.dispatch('chat:postChat', {
+            group: this.group,
+            message: this.newMessage,
+          });
+        } catch (e) {
+          // catch exception to allow function to continue
+        }
+
+        if (response) {
+          this.group.chat.unshift(response.message);
+          this.newMessage = '';
+        }
+
         this.sending = false;
 
         // @TODO: I would like to not reload everytime we send. Why are we reloading?