Comment 10 for bug 48445

The issue is that enabling auto-detect proxy settings may delay the amount of
time required to load the homepage for users who do not need to use a proxy to
connect to the network. Right now, we just load http://wpad/wpad.dat when asked
to auto-detect proxy settings, and we delay loading the user's homepage until we
get a response back from that wpad.dat request. If loading wpad.dat takes a
while to fail (slow DNS resolution), then it might result in a bad user
experience. So, I'm not sure what the right thing to do is.