From 8645a3109d1d0c9ea5e41d28bf55bac9bee0985f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maximilian=20Kr=C3=B6g?= <maxi_kroeg@web.de>
Date: Wed, 10 Feb 2021 00:05:24 +0100
Subject: [PATCH] Fix zIndex handling for hitdetection

getZIndex returns number|undefined, so Number conversion is unnecessary, but
undefined was converted to NaN instead of zero.
---
 src/ol/render/canvas/hitdetect.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ol/render/canvas/hitdetect.js b/src/ol/render/canvas/hitdetect.js
index b3da3725ff..c907a736ed 100644
--- a/src/ol/render/canvas/hitdetect.js
+++ b/src/ol/render/canvas/hitdetect.js
@@ -114,7 +114,7 @@ export function createHitDetectionImageData(
           })
         );
       }
-      const zIndex = Number(style.getZIndex());
+      const zIndex = style.getZIndex() || 0;
       let byGeometryType = featuresByZIndex[zIndex];
       if (!byGeometryType) {
         byGeometryType = {};