Custom "500: Internal Server Error" page (to handle middleware exceptions.)

[robcaldecott]

Summary

When an exception occurs in custom middleware, Next will render a generic 500: Internal Server Error page but I cannot find a way to customise this. I have tried app/global-error.tsx and app/error.tsx and neither are used.

I'd really like a way to show a custom page along with some details of the exception if possible. One solution I saw was to Cath middleware errors and then redirect to a special page with the exception details encoded as a URL param. Before I go down this route, I wondered if there was an officially sanctioned way to do this?

Many thanks.

Additional information

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Example

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