lib: ensure isPlotDiv accepts plain objects

n-riesco · n-riesco · commit ada5323716cf · 2016-06-07T18:02:42.000+01:00
diff --git a/src/lib/index.js b/src/lib/index.js
@@ -379,7 +379,9 @@ lib.getPlotDiv = function(el) {
 
 lib.isPlotDiv = function(el) {
     var el3 = d3.select(el);
-    return el3.size() && el3.classed('js-plotly-plot');
+    return el3.node() instanceof HTMLElement &&
+        el3.size() &&
+        el3.classed('js-plotly-plot');
 };
 
 lib.removeElement = function(el) {
