Move .default assignment to plugins

Author: TimothyGu

build/rollup-plugin.js

@@ -4,9 +4,10 @@ export default function tweakDefault() {
       var lines = source.split('\n');
       for (var i = 0; i < lines.length; i++) {
         var line = lines[i];
-        var matches = /^exports(?:\['default']|\.default) = (.*);$/.exec(line);
+        var matches = /^(exports(?:\['default']|\.default)) = (.*);$/.exec(line);
         if (matches) {
-          lines[i] = 'module.exports = exports = ' + matches[1] + ';';
+          lines[i] = 'module.exports = exports = ' + matches[2] + ';\n' +
+                     matches[1] + ' = exports;';
           break;
         }
       }

src/index.js

@@ -215,9 +215,6 @@ export default function fetch(url, opts) {
  */
 fetch.isRedirect = code => code === 301 || code === 302 || code === 303 || code === 307 || code === 308;
 
-// Needed for TypeScript.
-fetch.default = fetch;
-
 // expose Promise
 fetch.Promise = global.Promise;
 export {