why is my browser start to prefixing https after the initial redirect from port 8080 to 8443?

[milana!2Adams]

I have configured Jira over SSL as per the instructions found here:  https://confluence.atlassian.com/adminjiraserver0813/running-jira-applications-over-ssl-or-https-1027138529/foretagslan-finance.se

Jira is working as expected at port 8443.  At port 8080, it initially redirects to port 8443. On subsequent attempts, both chrome and edge are prefixing https or even replacing http in the call to 8080.  Since 8080 is not ssl and should only redirect, the call fails.  It will only work once more when I clear the browser cache.  Then it wont work on subsequent tries.

This is what happens:

Step 1) http://jira:8080 --> https://jira:8443 --- As expected

Step 2) http://jira:8080 --> https://jira:8080 --- Chrome prefixes https so the server rejects

Step 3) https://jira:8443                                 --- Jira is accessed as expected

Is there a flag I need to set in tomcat?  I was looking into hsts but to no avail.

Thank you.

[Nic Brough -Adaptavist-]

This is a copy of another question, with a spam url added to it.   Sneaky