Thank you for the update.
Don’t do anything yet, I want to take a look at it with one of my test units.
Just tested by enabling the cache option, works perfectly fine for me.
I uploaded an image to my github, added it as a URL as stated in the original question to your first post, and then after seeing that it loads, i go into github and upload a different picture with the same name, and not sure how many minutes later, but not more than 10, the image was showing as the new one.
test unit:
Nice catch, @ealmonte32. Thanks! The Disable cache switch is not working properly. I you try refreshing the page and check the switch again, it stays turned off.