From c857ca440c371c2e18e0dee8b26e0bbff147973b Mon Sep 17 00:00:00 2001
From: mike-000 <49240900+mike-000@users.noreply.github.com>
Date: Sat, 20 Aug 2022 12:24:09 +0100
Subject: [PATCH] do not display attributions if empty string

---
 src/ol/source/TileJSON.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ol/source/TileJSON.js b/src/ol/source/TileJSON.js
index 6f16c91cd6..7c5f648025 100644
--- a/src/ol/source/TileJSON.js
+++ b/src/ol/source/TileJSON.js
@@ -188,7 +188,7 @@ class TileJSON extends TileImage {
 
     this.tileUrlFunction = createFromTemplates(tileJSON['tiles'], tileGrid);
 
-    if (tileJSON['attribution'] !== undefined && !this.getAttributions()) {
+    if (tileJSON['attribution'] && !this.getAttributions()) {
       const attributionExtent = extent !== undefined ? extent : gridExtent;
       this.setAttributions(function (frameState) {
         if (intersects(attributionExtent, frameState.extent)) {