Description of problem:
Since Firefox 59, the basic HTTP authentication code has been modified and content (username and password) are transmitted in UTF-8 format instead of ISO-8859-1.
My password contains a French accent (è aka lowercase e with grave accent). The login fails since Firefox 59.
This probably affects others releases of JBoss.
Buf reference in Firefox : https://bugzilla.mozilla.org/show_bug.cgi?id=1449112
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Include an accent in your password.
2. Login in