always include web polyfills for now

src/transformPolyfillRequirePlugin.js

@@ -2,6 +2,12 @@ function isPolyfillSource(value) {
   return value === "babel-polyfill" || value === "core-js";
 }
 
+const whitelist = [
+  "web.timers",
+  "web.immediate",
+  "web.dom.iterable"
+];
+
 export default function ({ types: t }) {
   function createImportDeclaration(polyfill) {
     let declar = t.importDeclaration([], t.stringLiteral(`core-js/modules/${polyfill}`));
@@ -60,7 +66,7 @@ export default function ({ types: t }) {
         }
 
         path.replaceWithMultiple(
-          createImports(state.opts.polyfills, "import", state.opts.regenerator)
+          createImports([...state.opts.polyfills, ...whitelist], "import", state.opts.regenerator)
         );
       }
     },
@@ -81,7 +87,7 @@ to the "transform-polyfill-require" plugin
           }
 
           bodyPath.replaceWithMultiple(
-            createImports(state.opts.polyfills, "require", state.opts.regenerator)
+            createImports([...state.opts.polyfills, ...whitelist], "require", state.opts.regenerator)
           );
         }
       });

test/fixtures/plugin-options/filters-duplicates/expected.js

@@ -1,2 +1,5 @@
 import "core-js/modules/es6.typed.data-view";
 import "core-js/modules/es6.reflect.apply";
+import "core-js/modules/web.timers";
+import "core-js/modules/web.immediate";
+import "core-js/modules/web.dom.iterable";

test/fixtures/plugin-options/regenerator-false/expected.js

@@ -0,0 +1,3 @@
+import "core-js/modules/web.timers";
+import "core-js/modules/web.immediate";
+import "core-js/modules/web.dom.iterable";

test/fixtures/plugin-options/regenerator-true/expected.js

@@ -1 +1,4 @@
-import "core-js/modules/regenerator-runtime/runtime";
+import "core-js/modules/web.timers";
+import "core-js/modules/web.immediate";
+import "core-js/modules/web.dom.iterable";
+import "core-js/modules/regenerator-runtime/runtime";

test/fixtures/preset-options/core-js/expected.js

@@ -1,2 +1,5 @@
 import "core-js/modules/es7.string.pad-start";
-import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/web.timers";
+import "core-js/modules/web.immediate";
+import "core-js/modules/web.dom.iterable";

test/fixtures/preset-options/empty-options/expected.js

@@ -1,3 +1,3 @@
 "use strict";
 
-var a = "1";
+var a = "1";

test/fixtures/preset-options/modules-false/expected.js

@@ -1 +1 @@
-import a from "a";
+import a from "a";

test/fixtures/preset-options/no-options/expected.js

@@ -1,3 +1,3 @@
 "use strict";
 
-var a = "1";
+var a = "1";

test/fixtures/preset-options/use-builtins-chrome-48/expected.js

@@ -29,6 +29,9 @@ import "core-js/modules/es7.object.entries";
 import "core-js/modules/es7.object.get-own-property-descriptors";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/web.timers";
+import "core-js/modules/web.immediate";
+import "core-js/modules/web.dom.iterable";
 import "core-js/modules/regenerator-runtime/runtime";
 
-Math.pow(1, 2);
+Math.pow(1, 2);

test/fixtures/preset-options/use-builtins-chrome-49/expected.js

@@ -15,6 +15,9 @@ import "core-js/modules/es7.object.entries";
 import "core-js/modules/es7.object.get-own-property-descriptors";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/web.timers";
+import "core-js/modules/web.immediate";
+import "core-js/modules/web.dom.iterable";
 import "core-js/modules/regenerator-runtime/runtime";
 
-Math.pow(1, 2);
+Math.pow(1, 2);

test/fixtures/preset-options/use-builtins-import/expected.js

@@ -1,4 +1,7 @@
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/web.timers";
+import "core-js/modules/web.immediate";
+import "core-js/modules/web.dom.iterable";
 
-1 ** 2;
+1 ** 2;

test/fixtures/preset-options/use-builtins-multiple-imports/expected.js

@@ -1,4 +1,7 @@
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/web.timers";
+import "core-js/modules/web.immediate";
+import "core-js/modules/web.dom.iterable";
 
-1 ** 2;
+1 ** 2;

test/fixtures/preset-options/use-builtins-regenerator-true/expected.js

@@ -81,6 +81,9 @@ import "core-js/modules/es7.object.entries";
 import "core-js/modules/es7.object.get-own-property-descriptors";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/web.timers";
+import "core-js/modules/web.immediate";
+import "core-js/modules/web.dom.iterable";
 import "core-js/modules/regenerator-runtime/runtime";
 
-Math.pow(1, 2);
+Math.pow(1, 2);

test/fixtures/preset-options/use-builtins-require/expected.js

@@ -2,4 +2,10 @@ require("core-js/modules/es7.string.pad-start");
 
 require("core-js/modules/es7.string.pad-end");
 
-1 ** 2;
+require("core-js/modules/web.timers");
+
+require("core-js/modules/web.immediate");
+
+require("core-js/modules/web.dom.iterable");
+
+1 ** 2;

test/fixtures/preset-options/whitelist/expected.js

@@ -4,4 +4,4 @@ var _a = require("a");
 
 var _a2 = _interopRequireDefault(_a);
 
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }