Custom syntax error / HMR error page

[vjpr]

Feature request

I would like to modify the error page for syntax errors.

lib/error-debug I believe.

My idea is to linkify the stack trace so I can open it in my IDE.

I do not see a way of doing it at preset.

[vjpr]

Looks like it would be a simple addition:

client/index.js

  ErrorDebugComponent = passedDebugComponent
  ErrorComponent = await pageLoader.loadPage('/_error')

to

  ErrorDebugComponent = await pageLoader.loadPage('/_error-debug')
  ErrorComponent = await pageLoader.loadPage('/_error')

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Actually there are a million other places that _error.js is hard-coded. I went and added a matching _error-debug to all of them and it works!

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Maybe an alternative would be to pass a prop to _error.js which would tell it to render debug message...

[timneutkens]

Linking to source code will be trivial to add after #4639 lands, as errors get rendered by react-error-overlay which has this feature built in.