Error with import vue by es module

[lizheming]

Version

2.5.17-beta.0

Reproduction link

https://jsbin.com/kizeyopoqa

Steps to reproduce

open url and you can see an error in dev tool.

What is expected?

normal output console.log

What is actually happening?

Uncaught ReferenceError: process is not defined

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I think process.env should be compiled in build progress.

[JounQin]

There is already a PR #7110 tracking for it.

[lizheming]

OK, thank you very much. I have searched related question in issue but not pull request.