From 5dd29f1fe7e41c6ffd84f32627d309f62747aa81 Mon Sep 17 00:00:00 2001
From: Logan Allen <loganallc@gmail.com>
Date: Mon, 11 Jan 2021 15:13:48 -0600
Subject: [PATCH] channel.js: ack every 30 events *even if this.outstandingJSON
 is empty*

---
 pkg/arvo/app/landscape/js/channel.js | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/pkg/arvo/app/landscape/js/channel.js b/pkg/arvo/app/landscape/js/channel.js
index 2f10d6bc6c..a85fda9ba9 100644
--- a/pkg/arvo/app/landscape/js/channel.js
+++ b/pkg/arvo/app/landscape/js/channel.js
@@ -182,19 +182,19 @@ class Channel {
   //  sends a JSON command command to the server.
   //
   sendJSONToChannel(j) {
-    if(!j && this.outstandingJSON.length === 0) {
-      return;
-    }
     let req = new XMLHttpRequest();
     req.open("PUT", this.channelURL());
     req.setRequestHeader("Content-Type", "application/json");
 
     if (this.lastEventId == this.lastAcknowledgedEventId) {
-      if(j) {
+      if (j) {
         this.outstandingJSON.push(j);
       }
-      let x = JSON.stringify(this.outstandingJSON);
-      req.send(x);
+
+      if (this.outstandingJSON.length > 0) {
+        let x = JSON.stringify(this.outstandingJSON);
+        req.send(x);
+      }
     } else {
       //  we add an acknowledgment to clear the server side queue
       //
@@ -205,7 +205,7 @@ class Channel {
         ...this.outstandingJSON, 
         {action: "ack", "event-id": parseInt(this.lastEventId)}
       ];
-      if(j) {
+      if (j) {
         payload.push(j)
       }
       let x = JSON.stringify(payload);