X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=dygraph-utils.js;h=63411a599627809693bf15837ee47d466558f39c;hb=e11c15fd04a8848a1fe695bfb1892571ff06deb5;hp=f5440c7b3d7236b2d822d09137c103452deb00c1;hpb=117b8bee20ce2bf7d36668af054285244d438b5c;p=dygraphs.git

diff --git a/dygraph-utils.js b/dygraph-utils.js
index f5440c7..63411a5 100644
--- a/dygraph-utils.js
+++ b/dygraph-utils.js
@@ -598,7 +598,7 @@ Dygraph.updateDeep = function (self, o) {
           // DOM objects are shallowly-copied.
           self[k] = o[k];
         } else if (typeof(o[k]) == 'object') {
-          if (typeof(self[k]) != 'object') {
+          if (typeof(self[k]) != 'object' || self[k] === null) {
             self[k] = {};
           }
           Dygraph.updateDeep(self[k], o[k]);