From 5218877cf1bca07e85465d10a3fc05f226dbc607 Mon Sep 17 00:00:00 2001
From: Dan Vanderkam <danvk@sidewalklabs.com>
Date: Tue, 27 Dec 2016 09:09:36 -0500
Subject: [PATCH] Import babel polyfill

---
 auto_tests/coverage.html | 3 ---
 auto_tests/runner.html   | 3 ---
 package.json             | 5 ++++-
 src/dygraph.js           | 4 ++++
 4 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/auto_tests/coverage.html b/auto_tests/coverage.html
index e8cd24c..adf2639 100644
--- a/auto_tests/coverage.html
+++ b/auto_tests/coverage.html
@@ -9,9 +9,6 @@
   <div id="graph"></div>
   <div id="mocha"></div>
 
-  <!-- Polyfills for PhantomJS -->
-  <script src="../node_modules/babel-core/browser-polyfill.js"></script>
-
   <!-- Mocha -->
   <script src="../node_modules/mocha/mocha.js"></script>
   <script src="../node_modules/chai/chai.js"></script>
diff --git a/auto_tests/runner.html b/auto_tests/runner.html
index 2f48d5b..7ceb0d0 100644
--- a/auto_tests/runner.html
+++ b/auto_tests/runner.html
@@ -9,9 +9,6 @@
   <div id="graph"></div>
   <div id="mocha"></div>
 
-  <!-- Polyfills for PhantomJS -->
-  <script src="../node_modules/babel-core/browser-polyfill.js"></script>
-
   <!-- Mocha -->
   <script src="../node_modules/mocha/mocha.js"></script>
   <script src="../node_modules/chai/chai.js"></script>
diff --git a/package.json b/package.json
index 48b6534..c5a8d0b 100644
--- a/package.json
+++ b/package.json
@@ -60,5 +60,8 @@
   },
   "pre-commit": [
     "tests-ok"
-  ]
+  ],
+  "dependencies": {
+    "core-js": "^2.4.1"
+  }
 }
diff --git a/src/dygraph.js b/src/dygraph.js
index 13c6744..d1629db 100644
--- a/src/dygraph.js
+++ b/src/dygraph.js
@@ -43,6 +43,10 @@
 
  */
 
+// Polyfills
+import 'core-js/es6/symbol';
+import 'core-js/fn/symbol/iterator';
+
 import DygraphLayout from './dygraph-layout';
 import DygraphCanvasRenderer from './dygraph-canvas';
 import DygraphOptions from './dygraph-options';
-- 
2.7.4