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"Binding static in strict mode" #21

chpio opened this issue Dec 13, 2015 · 0 comments


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commented Dec 13, 2015


SyntaxError: .../node_modules/express/lib/express.js: Binding static in strict mode (120:11)
  118 | 
  119 | export default express;
> 120 | export var static = express.static;
      |            ^
  121 | export var query = express.query;
  122 | export var Router = express.Router;
  123 | export var Route = express.Route;

my build script:

    const plugins = [

    const presets = ['es2015-rollup'];

    const bundle = await rollup({
        entry: './src/index.js',
        plugins: [
            rollupNpm({jsnext: true, main: true}),
                babelrc: false,

    await bundle.write({
        format: 'es5',
        dest: `./index.js`,
        sourceMap: 'inline',

i think, rollup cjs produces illegal code (es2015 modules with "use strict"), this causes babel to throw an error.

@chpio chpio referenced this issue Dec 13, 2015


Illegal imports #355

Rich-Harris added a commit that referenced this issue Dec 28, 2015

Merge pull request #26 from rollup/gh-21
blacklist all reserved words as export names
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