Custom error pages

If you select the Custom error pages option when generating your codebase, the error handling helper functions in cmd/web/errors.go will be configured to render the custom error templates in the assets/templates/pages/errors directory, instead of writing a plaintext error message.

Specifically:

• The serverError() helper renders the pages/errors/500.tmpl template.
• The notFound() helper renders the pages/errors/404.tmpl template.
• The badRequest() helper renders the pages/errors/400.tmpl template.

If you selected the Basic auth option when generating your codebase, the basicAuthenticationRequired() helper will also render the pages/errors/401.tmpl template.

Feel free to customize the template files as you wish.