in src/index.js [34:42]
filterModules(module) {
const modulePath = module.identifier || module.name
return (
(module.built || module.name.indexOf('external ') === 0) &&
module.name.indexOf('(webpack)') === -1 &&
module.reasons.length > 0 &&
(!this.exclude || !this.exclude.some(it => it.test(modulePath)))
)
}