WebView not working with portal.upmc.com?

discreetdiscrete

https://portal.upmc.com (which redirects to https://portal.upmc.com/MyUPMC/Authentication/Login?) seems to be not loading properly in Vanadium, IronFox, or the portal's official app which uses WebView. It works on my other phone running LineageOS, which uses Android System WebView.

Trying it in an app called WebView Test, I got a bunch of console errors, starting with this one:
Console: 03-31 15:53:45.550 [ERROR] "Uncaught ReferenceError: jQuery is not defined", source: https://portal.upmc.com/MyUPMC/scripts/utilities/jqwrappers.min.js?v=<redacted gibberish in case it contains anything identifying> (line:2)
Along with the console errors, the WebView Test app also repeatedly shows a Connection Reset error toast. Neither happens on my LineageOS phone running the same WebView Test app.

I have tried:

allowing permissions in Vanadium: JIT, Ads, Sensors, Third-party cookies
disabling Vanadium secure DNS
enabling Exploit protection compatibility mode for the the portal app, WebView Test, and IronFox

Vamadium System WebView version in use is 146.0.7680.164.0. Should I try installing the Beta or Alpha of Vanadium (which I assume means installing the respective Beta or Alpha of GrapheneOS)?

Johnnyloans

discreetdiscrete

Works for me in ironfox and vanadium
https://imgur.com/a/aZJEjEr
Same version: 146.0.7680.164.0

If you tried this a while ago and posted now, maybe the site was having issues but now works.
These could be problematic: Tor, vpn, ad blocker, dns app/server, content blocker, network ad blocker.

Do other websites work?
Try clearing the cache of your web browsers. under app info
try the website in incognito or private browsing.

discreetdiscrete

Ah, the problem was RethinkDNS! Thank you for pointing me the right direction. I thought it would be sufficient to disable just the DNS option within the RethinkDNS app rather than disconnecting the whole VPN, but i guess not.

However, that brings me to the next iteration of the issue: portal.upmc.com works with RethinkDNS on my old LineageOS phone but not this GrapheneOS phone. I've tried disabling a few options in RethinkDNS, and I'll try poking around more see if I can find anything...

(I use RethinkDNS to block mobile data connections for certain apps, not for security but to save data.)

Novalissoide

discreetdiscrete disconnecting the whole VPN, but i guess not.

You need not to disable the vpn, just add a allowance for the domain in RethinkDNS

discreetdiscrete

Well, I feel embarrassed but once again I'm glad you pointed me in the right direction. Long story short, I had to grab a pre-release version of RethinkDNS (my dumb ass somehow wound up with a working version on my old phone but not my new one, whoops). So, not a Vanadium issue in the slightest. I'm glad I didn't open a bug report, lol