I had an application that was running with HTTP in all the browsers with no problem. Then I configured an Let's Encrypt SSL certificate using win-acme v18.104.22.168. Find the link below: https://github.com/PKISharp/win-acme/releases/tag/v22.214.171.124
After installing the certificate, I was able to run my application with HTTPS on all browsers ( Chrome, Firefox and Microsoft Edge) expect IE 11.
This is what's displayed when I try to run my application on IE 11:
What could be causing this issue? Is IE 11 supported by Let's Encrypt? Thanks.
PS: The content above my DOCTYPE tag isn't part of my code.