added check for existence of node (fix #431)

1 files changed, 3 insertions, 0 deletions

diff --git a/src/svg.js b/src/svg.js
index ebe298c..c69aebc 100644
--- a/src/svg.js
+++ b/src/svg.js
@@ -90,6 +90,9 @@ SVG.invent = function(config) {
 
 // Adopt existing svg elements
 SVG.adopt = function(node) {
+  // check for presence of node
+  if (!node) return null
+
   // make sure a node isn't already adopted
   if (node.instance) return node.instance