📦 add polyfills and refactor package.json

- webpack/webpack#1979
- babel/babel#9250

package.json

@@ -4,10 +4,12 @@
     "author": "Robin Löffel <hi@robinloeffel.ch> (https://robinloeffel.ch)",
     "version": "0.2.1",
     "license": "MIT",
-    "homepage": "https://robinloeffel.ch/misc/mehrsprachig",
+    "homepage": "https://dev.robinloeffel.ch/mehrsprachig",
     "repository": "rbnlffl/mehrsprachig",
-    "module": "dist/mehrsprachig.es.js",
-    "browser": "dist/mehrsprachig.umd.js",
+    "main": "dist/mehrsprachig.umd.js",
+    "unpkg": "dist/mehrsprachig.umd.js",
+    "module": "dist/mehrsprachig.esm.js",
+    "jsnext:main": "dist/mehrsprachig.esm.js",
     "files": [
         "dist/mehrsprachig.*"
     ],
@@ -26,13 +28,15 @@
         "@babel/preset-env": "^7.2.0",
         "babel-eslint": "^10.0.1",
         "npm-run-all": "^4.1.5",
+        "promise-polyfill": "^8.1.0",
         "rollup": "^0.68.0",
         "rollup-plugin-babel": "^4.1.0",
         "rollup-plugin-commonjs": "^9.2.0",
         "rollup-plugin-eslint": "^5.0.0",
         "rollup-plugin-node-resolve": "^4.0.0",
         "rollup-plugin-uglify": "^6.0.0",
-        "serve": "^10.1.1"
+        "serve": "^10.1.1",
+        "whatwg-fetch": "^3.0.0"
     },
     "scripts": {
         "build": "rollup -c",

rollup.config.js

@@ -3,6 +3,7 @@ import resolve from 'rollup-plugin-node-resolve';
 import commonjs from 'rollup-plugin-commonjs';
 import { uglify } from 'rollup-plugin-uglify';
 import { eslint } from 'rollup-plugin-eslint';
+import pkg from './package.json';
 
 // two separate objects for two separate outputs
 // firstly esnext for bundlers, then umd for browsers
@@ -16,7 +17,7 @@ export default [{
     output: {
         dir: 'dist',
         sourcemap: true,
-        file: 'mehrsprachig.es.js',
+        file: pkg.module,
         format: 'es'
     }
 }, {
@@ -32,7 +33,7 @@ export default [{
         dir: 'dist',
         sourcemap: true,
         name: 'Mehrsprachig',
-        file: 'mehrsprachig.umd.js',
+        file: pkg.browser,
         format: 'umd'
     }
 }];

src/mehrsprachig.js

@@ -1,3 +1,6 @@
+import 'whatwg-fetch';
+import 'promise-polyfill/src/polyfill';
+
 class Mehrsprachig {
     constructor({
         language = 'browser',

yarn.lock

@@ -2174,6 +2174,11 @@ progress@^2.0.0:
   resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.0.tgz#8a1be366bf8fc23db2bd23f10c6fe920b4389d1f"
   integrity sha1-ihvjZr+Pwj2yvSPxDG/pILQ4nR8=
 
+promise-polyfill@^8.1.0:
+  version "8.1.0"
+  resolved "https://registry.yarnpkg.com/promise-polyfill/-/promise-polyfill-8.1.0.tgz#30059da54d1358ce905ac581f287e184aedf995d"
+  integrity sha512-OzSf6gcCUQ01byV4BgwyUCswlaQQ6gzXc23aLQWhicvfX9kfsUiUhgt3CCQej8jDnl8/PhGF31JdHX2/MzF3WA==
+
 pseudomap@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
@@ -2747,6 +2752,11 @@ vary@~1.1.2:
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
   integrity sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=
 
+whatwg-fetch@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-3.0.0.tgz#fc804e458cc460009b1a2b966bc8817d2578aefb"
+  integrity sha512-9GSJUgz1D4MfyKU7KRqwOjXCXTqWdFNvEr7eUBYchQiVc744mqK/MzXPNR2WsPkmkOa4ywfg8C2n8h+13Bey1Q==
+
 which@^1.2.9:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"