Parsing error: unknown jsx node when newlines are between nested jsx nodes

[alexkrautmann]

Subject of the issue

When newlines exist between 2 nested jsx nodes, linting of the file fails with Parsing error: unknown jsx node.

Your environment

• OS: MacOS 10.15.7, CodeSandbox
• Packages:
  • eslint@7.20.0
  • eslint-plugin-mdx@1.8.2
  • eslint-plugin-react@7.22.0
• Env:
  • node@14.15.5, (10.23.0 in CodeSandbox)
  • yarn@1.22.10

Steps to reproduce

codesandbox

Error

<div>
  <p>test</p> 

  <p>test</p>
</div>

No Error

<div>
  <p>test</p> 
  <p>test</p>
</div>

Expected behaviour

This should pass lint without error

Actual behaviour

Lint fails with error

[JounQin]

Thanks for your reporting, I can imagine that's caused by strict RegExp to match jsx node which does not allow leading space.

I'll try to resolve it when I'm free.