From af89cc4a3e52e2f297760c6a7512e4ae4f7e81b1 Mon Sep 17 00:00:00 2001
From: itsb <itsb@users.noreply.github.com>
Date: Wed, 27 Jun 2018 17:28:59 -0700
Subject: [PATCH] expose new plotly.js config option

---
 plotly/offline/offline.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/plotly/offline/offline.py b/plotly/offline/offline.py
index 6ab50476448..6f56fb0b1d0 100644
--- a/plotly/offline/offline.py
+++ b/plotly/offline/offline.py
@@ -205,7 +205,8 @@ def _plot_html(figure_or_data, config, validate, default_width,
         'displaylogo',
         'plotGlPixelRatio',
         'setBackground',
-        'topojsonURL'
+        'topojsonURL',
+        'toImageButtonOptions'
     )
 
     config_clean = dict((k, config[k]) for k in configkeys if k in config)