feat: dropped IE support (ActiveXObject), fixed XMLHttpRequest in Ele…

…ctron (closes #1731),

.browserslistrc

@@ -1,5 +1 @@
-# Browsers that we support
-
-> 1%
-last 2 versions
-ie 9
+defaults, not ie 11

.dist.babelrc

@@ -2,7 +2,7 @@
   "presets": [
     ["@babel/env", {
       "targets": {
-        "browsers": [ "> 1%", "last 2 versions", "ie 9" ]
+        "browsers": [ "defaults, not ie 11" ]
       }
     }]
   ],

.dist.eslintrc

@@ -40,21 +40,8 @@
   },
   "settings": {
     "polyfills": [
-      "Promise",
-      "Array.from",
-      "Symbol",
-      "Object.getOwnPropertySymbols",
-      "Object.setPrototypeOf",
-      "Set",
-      "Math.trunc",
-      "BigInt",
-      "Map",
-      "Reflect",
-      "WeakMap",
       "WeakRef",
-      "WeakSet",
-      "Atomics",
-      "SharedArrayBuffer"
+      "BigInt"
     ]
   }
 }

.eslintrc

@@ -31,8 +31,5 @@
     "node/no-exports-assign": "off"
   },
   "globals": {
-    "ActiveXObject": "readonly"
   }
-
-
-}
+}

.lib.babelrc

@@ -3,9 +3,9 @@
       ["@babel/env", {
         "targets": {
           "node": "6.4.0",
-          "browsers": [ "> 1%", "last 2 versions", "ie 9" ]
+          "browsers": [ "defaults, not ie 11" ]
         }
       }]
     ],
     "sourceMaps": "inline"
-  }
+  }

.lib.eslintrc

@@ -19,7 +19,6 @@
     {
       "files": [ "lib/client.js" ],
       "globals": {
-        "ActiveXObject": "readable"
       }
     },
     {

.test.babelrc

@@ -3,7 +3,7 @@
     ["@babel/env", {
       "targets": {
         "node": "6.4.0",
-        "browsers": [ "> 1%", "last 2 versions", "ie 9" ]
+        "browsers": [ "defaults, not ie 11" ]
       }
     }]
   ],

.xo-config.js

@@ -84,8 +84,8 @@ module.exports = {
 				],
 			},
 		],
+    'unicorn/prefer-optional-catch-binding': 'off',
+    'no-unused-vars': 'off'
 	},
-	globals: [
-		'ActiveXObject',
-	],
+	globals: [],
 };

README.md

@@ -72,7 +72,7 @@ superagent.post('/api/pet').then(console.log).catch(console.error);
 
 ### Browser
 
-**The browser-ready, minified version of `superagent` is only 6 KB (minified and gzipped)!**
+**The browser-ready, minified version of `superagent` is only 50 KB (minified and gzipped).**
 
 Browser-ready versions of this module are available via [jsdelivr][], [unpkg][], and also in the `node_modules/superagent/dist` folder in downloads of the `superagent` package.
 
@@ -83,7 +83,7 @@ Browser-ready versions of this module are available via [jsdelivr][], [unpkg][],
 This is the solution for you if you're just using `<script>` tags everywhere!
 
 ```html
-<script src="https://polyfill.io/v3/polyfill.min.js?features=Array.from,Promise,Symbol,Object.setPrototypeOf,Object.getOwnPropertySymbols,Set,Math.trunc,BigInt,Map,Reflect,WeakMap,WeakRef,WeakSet,BigInt,Map,Reflect,WeakMap,WeakRef,WeakSet"></script>
+<script src="https://polyfill.io/v3/polyfill.min.js?features=WeakRef,BigInt"></script>
 <script src="https://cdn.jsdelivr.net/npm/superagent"></script>
 <!-- if you wish to use unpkg.com instead: -->
 <!-- <script src="https://unpkg.com/superagent"></script> -->
@@ -120,50 +120,49 @@ If you are using [browserify][], [webpack][], [rollup][], or another bundler, th
   ```
 
   ```sh
-  and_chr 71
-  and_ff 64
-  and_qq 1.2
-  and_uc 11.8
-  android 67
-  android 4.4.3-4.4.4
-  baidu 7.12
-  bb 10
-  bb 7
-  chrome 73
-  chrome 72
-  chrome 71
-  edge 18
-  edge 17
-  firefox 66
-  firefox 65
-  ie 11
-  ie 10
-  ie 9
-  ie_mob 11
-  ie_mob 10
-  ios_saf 12.0-12.1
-  ios_saf 11.3-11.4
+  and_chr 102
+  and_ff 101
+  and_qq 10.4
+  and_uc 12.12
+  android 101
+  chrome 103
+  chrome 102
+  chrome 101
+  chrome 100
+  edge 103
+  edge 102
+  edge 101
+  firefox 101
+  firefox 100
+  firefox 91
+  ios_saf 15.5
+  ios_saf 15.4
+  ios_saf 15.2-15.3
+  ios_saf 15.0-15.1
+  ios_saf 14.5-14.8
+  ios_saf 14.0-14.4
+  ios_saf 12.2-12.5
+  kaios 2.5
   op_mini all
-  op_mob 46
-  op_mob 12.1
-  opera 58
-  opera 57
-  safari 12
-  safari 11.1
-  samsung 8.2
-  samsung 7.2-7.4
+  op_mob 64
+  opera 86
+  opera 85
+  safari 15.5
+  safari 15.4
+  samsung 17.0
+  samsung 16.0
   ```
 
 ### Required Browser Features
 
 We recommend using <https://polyfill.io> (specifically with the bundle mentioned in [VanillaJS](#vanillajs) above):
 
 ```html
-<script src="https://polyfill.io/v3/polyfill.min.js?features=Array.from,Promise,Symbol,Object.setPrototypeOf,Object.getOwnPropertySymbols,Set,Math.trunc,BigInt,Map,Reflect,WeakMap,WeakRef,WeakSet"></script>
+<script src="https://polyfill.io/v3/polyfill.min.js?features=WeakRef,BigInt"></script>
 ```
 
-* IE 9-10 requires a polyfill for `Promise`, `Array.from`, `Symbol`, `Object.getOwnPropertySymbols`, and `Object.setPrototypeOf`
-* IE 9 requires a polyfill for `window.FormData` (we recommend [formdata-polyfill][]), `Set`, `Math.trunc`, `BigInt`, `Map`, `Reflect`, `WeakMap`, `WeakRef`, and `WeakSet`
+* WeakRef is not supported in Opera 85, iOS Safari 12.2-12.5
+* BigInt is not supported in iOS Safari 12.2-12.5
 
 
 ## Plugins
@@ -261,8 +260,6 @@ Our breaking changes are mostly in rarely used functionality and from stricter e
 
 [yarn]: https://yarnpkg.com/
 
-[formdata-polyfill]: https://www.npmjs.com/package/formdata-polyfill
-
 [jsdelivr]: https://www.jsdelivr.com/
 
 [unpkg]: https://unpkg.com/

docs/index.md

@@ -855,14 +855,16 @@ Libraries like [co](https://github.com/tj/co) or a web framework like [koa](http
     const res = yield req;
 ```
 
-Note that SuperAgent expects the global `Promise` object to be present. You'll need a polyfill to use promises in Internet Explorer or Node.js 0.10.
+Note that SuperAgent expects the global `Promise` object to be present. You'll need to use v7 and a polyfill to use promises in Internet Explorer or Node.js 0.10.
+
+We have dropped support in v8 for IE.  You must add a polyfill for WeakRef and BigInt if you wish to support Opera 85, iOS Safari 12.2-12.5, for example using <https://polyfill.io>:
+
+```html
+<script src="https://polyfill.io/v3/polyfill.min.js?features=WeakRef,BigInt"></script>
+```
 
 ## Browser and node versions
 
 SuperAgent has two implementations: one for web browsers (using XHR) and one for Node.JS (using core http module). By default Browserify and WebPack will pick the browser version.
 
 If want to use WebPack to compile code for Node.JS, you *must* specify [node target](https://webpack.github.io/docs/configuration.html#target) in its configuration.
-
-### Using browser version in electron
-
-[Electron](https://electron.atom.io/) developers report if you would prefer to use the browser version of SuperAgent instead of the Node version, you can `require('superagent/superagent')`. Your requests will now show up in the Chrome developer tools Network tab. Note this environment is not covered by automated test suite and not officially supported.