fix require issue in bundle, add sourcemaps

support/rollup/examples.js

@@ -27,7 +27,7 @@ function configure(env) {
       name: 'slate-examples',
       format: 'umd',
       exports: 'named',
-      sourcemap: isDev,
+      sourcemap: isDev ? 'inline' : false,
     },
     watch: {
       include: ['examples/**', 'packages/*/lib/*.es.js'],
@@ -86,7 +86,7 @@ function configure(env) {
       // Only minify the output in production, since it is very slow.
       isProd && uglify(),
 
-      // Only add sourcemaps in development.
+      // Only parse sourcemaps of dependencies in development.
       isDev && sourcemaps(),
     ].filter(Boolean),
   }

support/rollup/packages.js

@@ -112,6 +112,7 @@ function configure(pkg, env, target) {
           file: `packages/${pkg.name}/${pkg.main}`,
           format: 'cjs',
           exports: 'named',
+          sourcemap: isDev,
         },
       ],
       // We need to explicitly state which modules are external, meaning that