X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=src%2Fdygraph.js;h=ee393839696199fbc2e511f9c3c9e176a8e69a7b;hb=7454418463735d68643ee25f112ec2e8288b859c;hp=a5e326df017a6f865dab71690d386aa0709ac3bf;hpb=b5794b6527e322cac2ad8f3e4cb1750a11361bd6;p=dygraphs.git

diff --git a/src/dygraph.js b/src/dygraph.js
index a5e326d..ee39383 100644
--- a/src/dygraph.js
+++ b/src/dygraph.js
@@ -1815,7 +1815,7 @@ Dygraph.prototype.updateSelection_ = function(opt_animFraction) {
     ctx.save();
     for (i = 0; i < this.selPoints_.length; i++) {
       var pt = this.selPoints_[i];
-      if (isNaN(pt.canvasy) || pt.canvasy === null) continue;
+      if (isNaN(pt.canvasy) || pt.canvasy === null || pt.canvasy === undefined) continue;
 
       var circleSize = this.getNumericOption('highlightCircleSize', pt.name);
       var callback = this.getFunctionOption("drawHighlightPointCallback", pt.name);