Make sure you clear browser cache.
Browser cache clean, but no changes. In debug mode, it´s working.
It means that either you haven't compiled it, or haven't replaced it.
I see my mistake. I forgot replaced main.js and devices.js in Traccar folder, before compile. It´s working now. Thanks Anton.
Hello, I change the web layout in view\main.js and \view\edit\devices.js. I compiled file app.min.js with no errors. However, the change did not work.