Bad Username Login / Opera Browser

[StukaRT]

Opening the Webinterface in Opera defaults to the Bad Username Site and Login is not possible. While in MS Edge it works perfectly fine. I tried to allow all cookies and all trackers but still nothing. I know it is most likely something wiht Opera and not the Mailwatch Interface but anyone got an idea what?

Steps to reproduce

1. Open Webserver in opera
2. Redirects directly to the Bad Username login page
3. Can not login

Installation

Version and method

• MailWatch Version: 1.2.18
• Install type: Zip/tarball install
• fresh install

Server configuration

• Operation System: Rocky Linux 8
• PHP version: 7.4
• Database: MySQL
• Mail Server: Postfix
• Used web server: Apache

Client configuration

• Operation System: Win 10 Pro 21H2
• Browser: Opera Version: 82.0.4227.33