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react-constant-elements breaks with ModuleConcatenationPlugin #9959

natew opened this issue May 8, 2019 · 1 comment


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commented May 8, 2019

Bug Report

Current Behavior

I noticed in production mode I was getting undefined react elements, when using @babel/plugin-transform-react-constant-elements.

I'll need to come up with a repo as it's in a large project, but basically it seems the order is not proper in my bundle.

The only thing I noticed special about Header is its required by files A > B, and in B (required by A) it is undefined.



  • Babel version(s): 7.4.4
  • Node/npm version: 10

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commented May 8, 2019

Hey @natew! We really appreciate you taking the time to report an issue. The collaborators
on this project attempt to help as many people as possible, but we're a limited number of volunteers,
so it's possible this won't be addressed swiftly.

If you need any help, or just have general Babel or JavaScript questions, we have a vibrant Slack
that typically always has someone willing to help. You can sign-up here
for an invite.

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