From 410ea7167de1abd72c29623ff44a318f32ea5695 Mon Sep 17 00:00:00 2001
From: conceptualspace <dev@conceptualspace.net>
Date: Sat, 24 Dec 2016 03:24:00 -0500
Subject: [PATCH] Fix for issue #1873

Attempt parsing object (ex Moment.js date object) to date. This was implicitly supported <= 0.4.10 but regressed with narrower validation in #1121.
---
 src/core.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/core.js b/src/core.js
index 94ac711..415aa9e 100644
--- a/src/core.js
+++ b/src/core.js
@@ -1042,6 +1042,8 @@ c3_chart_internal_fn.parseDate = function (date) {
         parsedDate = date;
     } else if (typeof date === 'string') {
         parsedDate = $$.dataTimeFormat($$.config.data_xFormat).parse(date);
+    } else if (typeof date === 'object') {
+        parsedDate = new Date(+date);
     } else if (typeof date === 'number' && !isNaN(date)) {
         parsedDate = new Date(+date);
     }