specify corejs version

executablebooks · Aug 6, 2019 · 320a53b · 320a53b
1 parent 8dceeae
commit 320a53b
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diff --git a/package.json b/package.json
@@ -47,6 +47,7 @@
     "@jupyterlab/services": "^4.0.1",
     "@jupyterlab/theme-light-extension": "^1.0.1",
     "babel-loader": "^8.0.6",
+    "core-js": "^3.1.4",
     "css-loader": "^3.0.0",
     "file-loader": "^4.0.0",
     "jquery": "^3.4.1",

diff --git a/webpack.config.js b/webpack.config.js
@@ -65,6 +65,7 @@ module.exports = {
                 "@babel/preset-env",
                 {
                   useBuiltIns: "usage",
+                  corejs: 3,
                   shippedProposals: true,
                   targets: {
                     browsers: ["chrome 60", "firefox 45", "ie 10", "safari 9"],