Improve error messages in routes

**Feature request**
It would be great to have caching for hooks.

**Use case**
Many users need this functionality for production deployments.

**Implementation idea**
Add a new config option `enable_caching` with default `false`.

The title refers to error messages in routes, while the body requests caching for hooks and a new enable_caching configuration option. Start by locating the hook, route, and configuration entry points, then clarify the intended scope. Done should include a default of false and an agreed caching behavior for production deployments.

Written by the indexing model from the issue text.