Suspicious Connect URL Message

I keep getting this message when Facebook Devel is turned on:

The Facebook Application labeled test has a suspicious connect_url. The value is https://staging.printedart.net/, while something starting with http://staging.printedart.net was expected. Consider editing test.

I have switched back and forth between http and https multiple times without being able to avoid this message. It has been occasionally reversed asking for http and claiming the request was made for https, but I have not been able to run without seeing this message. What is the proper way to configure everything?