Bad Request - Invalid Hostname IIS7

Question

When I try to hit my web app on port 8080 I get the following error

Bad Request - Invalid Hostname
HTTP Error 400. The request hostname is inval

Answer 1

Don't forget to bind to the IPv6 address as well! I was trying to add a site on 127.0.0.1 using localhost and got the bad request/invalid hostname error. When I pinged localhost it resolved to ::1 since IPv6 was enabled so I just had to add the additional binding to fix the issue.