Created attachment 642895 [details]
Picture of the error

During Install of Leap 42.1  I clicked a option add Online Repositories during
the install.


After moving forward I receive the attached screenshot that advises: 
Unable to download list of repositories or no repositories defined

This occurs because i'm behind a proxy..  behind the popup i see what looks
like a way to potentially add proxy options, but there is no way to get to
it...


Having the ability to setup network connection/proxy information BEFORE a
process attempts to utilize the internet would be a nice feature?  or giving
the option to validate network/proxy settings after a failure like my
attachment would be awesome.