Fixes #489, only logs request in development

[francisli]

Before your pull request is reviewed and merged, make sure you

• there are no linting errors -- npm run lint
• code is in uniquely-named feature branch, and has been rebased on top of latest master. If you're asked to make more changes make sure you rebase onto master then too!
• pull request is descriptively named and links to an issue number, i.e. Fixes #123

Thank you!

I'm guessing you're actively debugging something in your production environment... but if not, this PR will prevent the logging of the entire request object unless it's in development environment...