Cannot connect to localhost port 80 in GCP Compute Engine VM

I have setup a Windows Server 2019 with Containers Compute Engine VM in Google Cloud. I have installed IIS. I want to go to the following URL on the local server in a browser, or via wget: http://localhost. However, I am getting back a connection refused. I tried on the Private IP and Public IP from the machine, both failed. Also fails from outside the VM using public IP.

I check with netstat and port 80 is open, and IIS is running. I ran Test-NetConnection and got the following result:

Test-NetConnection -Port 80 -ComputerName 127.0.0.1 -InformationLevel Detailed


ComputerName            : 127.0.0.1
RemoteAddress           : 127.0.0.1
RemotePort              : 80
NameResolutionResults   : 127.0.0.1
MatchingIPsecRules      :
NetworkIsolationContext : Loopback
IsAdmin                 : False
InterfaceAlias          : Loopback Pseudo-Interface 1
SourceAddress           : 127.0.0.1
NetRoute (NextHop)      : 0.0.0.0
TcpTestSucceeded        : True

So apparently the port is open but I just can't retrieve data from it.

This is super weird because it is on localhost. I also went into the VPC Network and added an HTTP Ingress (port 80) rule for 0.0.0.0/0.

I really can't figure this out. Why would I not be able to connect to a running port 80 web server on my own machine? Is there some extra firewall in this GCP image somewhere?

Any help would be greatly appreciated.

Update: I tried both localhost and 127.0.0.1 and neither work