404 error handler returns html page to CLI

[Iain-S]

If you are using the CLI and the CLI accesses a route that doesn't exist, our 404 handler (see main.py) returns a custom 404 web page. As a CLI user, it is confusing to receive a large amount of HTML when a simpler text message would do.

Joe's comment:

I think we should provide a wrapper for this in the CLI. ATM we check for a response code outside the range of 200-299 and return the status code and details if outside the range. We could just add logic that checks if the response status code is 404 and display a custom message if so.