From cc0452a2d99301b968a744313f90202dabb93a77 Mon Sep 17 00:00:00 2001
From: Andreas Hocevar <andreas.hocevar@gmail.com>
Date: Fri, 28 Oct 2016 11:20:46 +0200
Subject: [PATCH] Merge pull request #6039 from ahocevar/undefined-fillstyle

Do not fill when there is no fillStyle
---
 src/ol/render/canvas/polygonreplay.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ol/render/canvas/polygonreplay.js b/src/ol/render/canvas/polygonreplay.js
index b845e5aa88..fa6dd6ecd2 100644
--- a/src/ol/render/canvas/polygonreplay.js
+++ b/src/ol/render/canvas/polygonreplay.js
@@ -343,7 +343,7 @@ ol.render.canvas.PolygonReplay.prototype.setFillStrokeStyles_ = function(geometr
   var lineJoin = state.lineJoin;
   var lineWidth = state.lineWidth;
   var miterLimit = state.miterLimit;
-  if (typeof fillStyle !== 'string' || fillStyle !== undefined && state.currentFillStyle != fillStyle) {
+  if (fillStyle !== undefined && (typeof fillStyle !== 'string' || state.currentFillStyle != fillStyle)) {
     var fillInstruction = [ol.render.canvas.Instruction.SET_FILL_STYLE, fillStyle];
     if (typeof fillStyle !== 'string') {
       var fillExtent = geometry.getExtent();