Bug#261415: network installation always asks for proxy

[lsorense@csclub.uwaterloo.ca (Lennart Sorensen)]

On Sat, Jan 21, 2017 at 11:31:37PM -0800, Josh Triplett wrote:
> I do think we ought to attempt autodetection for this.  As long as a
> means exists for preseeders and expert installs to specify one anyway
> (for optional caching proxies), autodetecting by default seems like a
> good idea, to eliminate one of the more highly technical questions in
> the install.

Just how would you autodetect if a proxy should be used?  You can detect
if internet access works without one perhaps, but that doesn't mean a
proxy isn't desired.  I have actually encountered a network where the
firewall allowed access to one debian mirror without going through the
proxy, but security required going through a proxy.  Good luck detecting
that mess correctly.

-- 
Len Sorensen