Mockbin by Kong

This is a cool service that lets you test what your request looks like when an API receives it. Super handy for debugging issues. — A modern request bin to collect, inspect and debug HTTP requests and webhooks

Sometimes you need to see how the server receives what (you think) you are sending!

Ways to debug your jQuery or JavaScript codes – Hungred Dot Com

I’m a JS novice who has run into IE-specific problems, so this is a good thing.

Deprecated functions and WP_DEBUG | Andrew Nacin

A good article in general, but I’m saving it because it reminds me how to enable logging to a file. 😀