I don't know when and how this happens, but very often, when I want to change something in a project I either download the code from the web server via Filezilla or pull it from my git repository the javascript.min
files have these invalid characters.
I always solved this by re-downloading the files and replacing them. But why is this happening? It really annoys me.
When I open the file on the web server it has these characters too, but the site/functionality is working.
After downloading and testing it locally I get for example: jQuery is not defined...
Please see the screenshot below: