Merge pull request #229 from Bwc9876/patch-1

Add contains check for canvas when removing

Author: catdad

src/confetti.js

@@ -683,7 +683,9 @@
         }
 
         if (isLibCanvas && canvas) {
-          document.body.removeChild(canvas);
+          if (document.body.contains(canvas)) {
+            document.body.removeChild(canvas); 
+          }
           canvas = null;
           initialized = false;
         }