From 92aa874c6e83351d63df6b15db7bd26e84e61c11 Mon Sep 17 00:00:00 2001
From: Brian Helba <brian.helba@kitware.com>
Date: Thu, 1 Mar 2018 18:37:52 -0500
Subject: [PATCH] Improve Javascript error logging when Hammer.js lookup fails

---
 webpack.config.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/webpack.config.js b/webpack.config.js
index f8152574ba..9807e5291e 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -47,7 +47,10 @@ module.exports = {
       root: 'Hammer',
       commonjs: 'hammerjs',
       commonjs2: 'hammerjs',
-      amd: 'hammerjs'
+      amd: 'hammerjs',
+      // Since GeoJS's libraryTarget is "umd", defining this (undocumented) external library type
+      // will allow Webpack to create a better error message if a "hammerjs" import fails
+      umd: 'hammerjs'
     }
   },
   plugins: [