From 4e6253b71794e5acf7fb164c4599d6ca08886854 Mon Sep 17 00:00:00 2001
From: David Manzanares <dmanzanares@cartodb.com>
Date: Fri, 6 Oct 2017 16:02:16 +0200
Subject: [PATCH] Return HTTP 204 for empty tiles

---
 lib/cartodb/controllers/layergroup.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/cartodb/controllers/layergroup.js b/lib/cartodb/controllers/layergroup.js
index 9644aa06..f6089a00 100644
--- a/lib/cartodb/controllers/layergroup.js
+++ b/lib/cartodb/controllers/layergroup.js
@@ -313,7 +313,7 @@ LayergroupController.prototype.finalizeGetTileOrGrid = function(err, req, res, t
         global.statsClient.increment('windshaft.tiles.error');
         global.statsClient.increment('windshaft.tiles.' + formatStat + '.error');
     } else {
-        this.sendResponse(req, res, tile, 200, headers);
+        this.sendResponse(req, res, tile, tile.length===0? 204:200, headers);
         global.statsClient.increment('windshaft.tiles.success');
         global.statsClient.increment('windshaft.tiles.' + formatStat + '.success');
     }