Alert when user is on UCSFwifi or UCSF Eduroam stopped working

[HenrikBengtsson]

Background

Webpage https://wynton.ucsf.edu/hpc/get-started/access-cluster.html tries to detect when the user is on the UCSFwifi or UCSF Eduroam network. If the user is, then a warning is displayed:

⚠️ Warning: You appear to be connected to one of the UCSF WiFi:s - 'UCSFguest', 'UCSFhousing' or UCSF 'eduroam'. If you are on 'UCSFguest' or UCSF 'eduroam', you will not be able to reach Wynton by SSH. The symptom is an "ssh: connect to log1.wynton.ucsf.edu port 22: Connection timed out" error. If you get that error, make sure to switch to another WiFi such as 'UCSFwpa' or 'UCSFhousing', or connect to the UCSF VPN, before trying again.

Issue

This used to work but has since stopped working - it no longer alerts the user.

Troubleshooting

This is because the https://www.ipify.org/ service no longer is configured for CORS:

The console log reports:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://api64.ipify.org/?format=json. (Reason: CORS request did not succeed). Status code: (null).

Error obtaining IP address: TypeError: NetworkError when attempting to fetch resource.

[HenrikBengtsson]

Retry with:

$ curl --silent https://www.cloudflare.com/cdn-cgi/trace
fl=467f54
h=www.cloudflare.com
ip=169.230.79.44
ts=1760493668.386
visit_scheme=https
uag=curl/7.61.1
colo=SJC
sliver=010-tier1
http=http/2
loc=US
tls=TLSv1.3
sni=plaintext
warp=off
gateway=off
rbi=off
kex=X25519