On iOS 15.8.7, I cannot have my CapitalOne.com account page show full detail after authorization

After successfully logging into my account at www.capitalone.com and https://verified.capitalone.com/auth/signin I get a blank page instead on https://myaccounts.capitalone.com/#/welcome

So refreshing the page after signing in, the one that's blank, does not change anything?

Would e.g. enabling "Desktop Site" in the menu help going through a different funnel perhaps?

It might be just the iOS 15 system web components are too old today, and the site relies on something that's not supported on such legacy iOS. Logging in via Safari for comparison yields the same, or that one succeeds?

Yeah with another report for a different bank that opens on iOS 16+ but doesn't load on iOS 15.x I went to check and https://verified.capitalone.com/auth/signin simply doesn't work on iOS 15 — while I can probably spend some time investigating why exactly, it's just the platform limitation in the technology that it shipped with when it was released, and since it's broken even on the latest 15.8.x from about a month ago, there's just something in the APIs or networking that the bank's not backwards compatible with that far back:[