From 8a73db9331be7a28cd22b4c85f24fc30b9162f55 Mon Sep 17 00:00:00 2001
From: Andreas Hocevar <andreas.hocevar@gmail.com>
Date: Tue, 26 Dec 2017 19:34:27 +0100
Subject: [PATCH] Apply fill and stroke only when set

---
 src/ol/render/canvas/replay.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/ol/render/canvas/replay.js b/src/ol/render/canvas/replay.js
index 38923817d8..a017ddad79 100644
--- a/src/ol/render/canvas/replay.js
+++ b/src/ol/render/canvas/replay.js
@@ -989,7 +989,9 @@ ol.render.canvas.Replay.prototype.applyStroke = function(state) {
 ol.render.canvas.Replay.prototype.updateFillStyle = function(state, applyFill, geometry) {
   var fillStyle = state.fillStyle;
   if (typeof fillStyle !== 'string' || state.currentFillStyle != fillStyle) {
-    applyFill.call(this, state, geometry);
+    if (fillStyle !== undefined) {
+      applyFill.call(this, state, geometry);
+    }
     state.currentFillStyle = fillStyle;
   }
 };
@@ -1014,7 +1016,9 @@ ol.render.canvas.Replay.prototype.updateStrokeStyle = function(state, applyStrok
       state.currentLineJoin != lineJoin ||
       state.currentLineWidth != lineWidth ||
       state.currentMiterLimit != miterLimit) {
-    applyStroke.call(this, state);
+    if (strokeStyle !== undefined) {
+      applyStroke.call(this, state);
+    }
     state.currentStrokeStyle = strokeStyle;
     state.currentLineCap = lineCap;
     state.currentLineDash = lineDash;