From f4654ff1461948231e9cbaf49c3445b4837e0f0b Mon Sep 17 00:00:00 2001
From: mike-000 <49240900+mike-000@users.noreply.github.com>
Date: Fri, 6 Nov 2020 10:19:29 +0000
Subject: [PATCH] Handle empty Z coordinates

---
 src/ol/format/KML.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/ol/format/KML.js b/src/ol/format/KML.js
index 46d4674911..8775ecf583 100644
--- a/src/ol/format/KML.js
+++ b/src/ol/format/KML.js
@@ -1117,7 +1117,8 @@ export function readFlatCoordinates(node) {
   const flatCoordinates = [];
   // The KML specification states that coordinate tuples should not include
   // spaces, but we tolerate them.
-  const re = /^\s*([+\-]?\d*\.?\d+(?:e[+\-]?\d+)?)\s*,\s*([+\-]?\d*\.?\d+(?:e[+\-]?\d+)?)(?:\s*,\s*([+\-]?\d*\.?\d+(?:e[+\-]?\d+)?))?\s*/i;
+  s = s.replace(/\s*,\s*/g, ',');
+  const re = /^\s*([+\-]?\d*\.?\d+(?:e[+\-]?\d+)?),([+\-]?\d*\.?\d+(?:e[+\-]?\d+)?)(?:\s+|,|$)(?:([+\-]?\d*\.?\d+(?:e[+\-]?\d+)?)(?:\s+|$))?\s*/i;
   let m;
   while ((m = re.exec(s))) {
     const x = parseFloat(m[1]);