After entering the administrator credentials for the Gaia WebUI in Firefox 56 or Chrome 66 and clicking the "LOGIN >" button, only a blank page appears.
Debugger in Firefox shows:
The stylesheet https://SYSTEMIP/login/login.css was not loaded because its MIME type, text/html, is not text/css.
The stylesheet https://SYSTEMIP/login/ext-all.css was not loaded because its MIME type, text/html, is not text/css.
SyntaxError: expected expression, got '<'[Learn More] ext-base.js:1
SyntaxError: expected expression, got '<'[Learn More] ext-all.js:1
SyntaxError: expected expression, got '<'[Learn More] login.js:1
The /var/log/messages file shows:
httpd2: HTTP login from ADMIN-IP as admin
httpd2: Received URL with out session information, Redirecting to login: /login/ext-all.css
httpd2: Received URL with out session information, Redirecting to login: /login/ext-all.js
httpd2: Received URL with out session information, Redirecting to login: /login/ext-all.css
httpd2: Received URL with out session information, Redirecting to login: /login/ext-all.js
httpd2: Received URL with out session information, Redirecting to login: /login/login.css
httpd2: Received URL with out session information, Redirecting to login: /login/login.css
httpd2: Received URL with out session information, Redirecting to login: /login/ext-base.js
httpd2: Received URL with out session information, Redirecting to login: /login/ext-base.js