added check for null in c3_chart_internal_fn.expandArc

9 years ago · 6a673c03b4
1 changed files with 1 additions and 1 deletions
--- a/src/arc.js
+++ b/src/arc.js
@ -143,7 +143,7 @@ c3_chart_internal_fn.expandArc = function (targetIds) {
        interval = window.setInterval(function () {
            if (!$$.transiting) {
                window.clearInterval(interval);
-                if ($$.legend.selectAll('.c3-legend-item-focused').size() > 0) {
+                if ($$.legend && $$.legend.selectAll('.c3-legend-item-focused').size() > 0) {
                    $$.expandArc(targetIds);
                }
            }