IE 11 compatibility (#696)

.circleci/config.yml

@@ -32,7 +32,7 @@ jobs:
           command: |
             . venv/bin/activate
             set -eo pipefail
-            npm i --ignore-scripts
+            npm ci
             npm run format:test
             npm run lint
             flake8 --ignore=E501,F401,F841,F811,W503 tests
@@ -86,10 +86,10 @@ jobs:
             cd dash-renderer && npm run build
             python setup.py sdist && mv dist/* ../../packages/ && cd ../..
             # build dcc
-            npm i --ignore-scripts && npm run build && python setup.py sdist && mv dist/* ./packages
+            npm ci && npm run build && python setup.py sdist && mv dist/* ./packages
             # build html
             git clone --depth 1 https://github.com/plotly/dash-html-components.git
-            cd dash-html-components && npm i --ignore-scripts && npm run build
+            cd dash-html-components && npm ci && npm run build
             python setup.py sdist && mv dist/* ../packages && cd .. && ls -la packages
       - persist_to_workspace:
           root: ~/project

CHANGELOG.md

@@ -3,6 +3,9 @@ All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## Unreleased
+### Fixed
+- [#696](https://github.com/plotly/dash-core-components/pull/696) Fix IE11 compatibility issues and ES5 compatibility and validation
+
 ### Changed
 - [#687](https://github.com/plotly/dash-core-components/pull/687/) Use `start_date`, `min_date_allowed`, `end_date`, or `max_date_allowed` for the initial visible month if the value of the parameter `initial_visible_month` is not supplied.
 

babel.config.js

@@ -1,8 +1,5 @@
 const presets = [
-    ['@babel/env', {
-        useBuiltIns: 'usage',
-        corejs: 3
-    }],
+    '@babel/preset-env',
     '@babel/preset-react'
 ];