Question 1

How do I install Prone in my Clojure Ring project?

Accepted Answer

Add the dependency to your project.clj and wrap your app with prone/wrap-exceptions middleware. For lein-ring, configure it in the dev profile as shown in the README under usage.

Question 2

Prone vs standard Ring error middleware: which is better for debugging?

Accepted Answer

Prone provides visual, interactive error pages with filtered stack traces and data inspection, while standard Ring errors are basic. Prone is superior for development debugging but should not replace production error handling.

Question 3

How can I skip Prone for certain requests like Postman?

Accepted Answer

Use the :skip-prone? option with a predicate function in wrap-exceptions, for example to check for headers like 'postman-token', as demonstrated in the Q&A section of the README.

Question 4

Does Prone work with ClojureScript and AJAX errors?

Accepted Answer

Yes, Prone supports AJAX requests via a Link header, allowing frontend code to redirect to error pages. The README includes a JavaScript example for handling this in ClojureScript apps.

Question 5

Can I use Prone in a production environment safely?

Accepted Answer

No, Prone is not recommended for production due to data exposure risks. The README advises enabling it only in development using system properties or conditional middleware wrapping.

Question 6

How to prevent double printing of error messages with Prone?

Accepted Answer

Set the :print-stacktraces? option to false when wrapping exceptions to avoid conflict with existing logging frameworks, as mentioned in the Q&A section.

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