Javascript Invalid or Unexpected token (\u0)

I had the same issue, it's caused by the VM.

For NGINX in the location / block add the sendfile off setting.

location / {
    ...
    sendfile off;
}

For Apache, look for EnableSendfile in httpd.conf and set it to off:

EnableSendfile off

You must restart the services for the changes to take effect, hard refresh in your web browser (CTRL+F5) is required to see the change in effect.

EnableMMAP and EnableSendfile: On systems that support it, memory-mapping or the sendfile syscall may be used to deliver files. This usually improves server performance, but must be turned off when serving from networked-mounted filesystems or support for these functions is otherwise broken on your system.