I sure hope nobody is using 169.254 for LAN (though I suppose you could, just like you could use 100.100) but I discovered it as a pretty smart fallback for rou

I sure hope nobody is using 169.254 for LAN (though I suppose you could, just like you could use 100.100) but I discovered it as a pretty smart fallback for routers. I suppose you could hardcode http://[fe80::1]/ http://[fe80::1]/ on the IPv6 side as well, but I've never seen a router actually do that. The trailing slash trick sometimes worked, but not always. It took a couple of tries to get working every time I needed it to work. I bet it's some kind of problem on the mDNS layer, but regardless, the quickest way to fix it was to use an IP address. Another annoyance I have (which isn't the protocol's fault) is that on my phone I can't even hand-type IPv6 addresses because Mozilla is using some kind of regex to detect if things are URLs and that regex doesn't support IPv6. It did for a short while, but the IPv6 regex was too complex and slowed things down, so that was reverted.