I'm new to CodeIgniter. I notice that all CodeIgniter folders (cache, config, controllers, core, errors, etc...) contains an index.html file that basically says "Directory access is forbidden". Correct me if I'm wrong, but I don't think it is possible to get to any of these folders from the web based on CodeIgniter's default configuration.
What is the purpose of these index.html files? Can I just delete them, or do I leave them alone?
Thanks much.