From 6844d74e34c0a021ba171ee0b1b3a337577d93ae Mon Sep 17 00:00:00 2001
From: Carson <cpsievert1@gmail.com>
Date: Mon, 23 Sep 2019 14:21:41 -0500
Subject: [PATCH] Call setInputValue only if it's defined, closes #1624

---
 inst/htmlwidgets/plotly.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/inst/htmlwidgets/plotly.js b/inst/htmlwidgets/plotly.js
index d1efe9c264..0662cbd1a8 100644
--- a/inst/htmlwidgets/plotly.js
+++ b/inst/htmlwidgets/plotly.js
@@ -296,7 +296,7 @@ HTMLWidgets.widget({
 
     
     // send user input event data to shiny
-    if (HTMLWidgets.shinyMode) {
+    if (HTMLWidgets.shinyMode && Shiny.setInputValue) {
       
       // Some events clear other input values
       // TODO: always register these?