Nuxt.js: When I Nuxt build, it contains ES6 code in vendors.js！

[lingliMr]

Versions

• nuxt: v2.13.0
• node: v12.4.0

Reproduction

Additional Details

Steps to reproduce

in [email protected]+ is normal
Other documents are normal ，only vendors.js contains ES6.

What is Expected?

no es6

What is actually happening?

[pi0]

Hi @lingliMr. This is expected behavior since vendors from node_modules are ignored for babel transpile. You can whitelist the ones that need transpilation: https://nuxtjs.org/api/configuration-build/#transpile

[pi0]

Update: From screenshot i guess it is query-string package thus this should do the trick:

{
  build: {
    transpile: [ 'query-string' ]
  }
}