Ah, bummer. Just did some quick research, which suggested that first load can fail on iOS 14, but that refreshing the page might fix the issue. Can you try and report back?

I don't see iOS 14 in the list of simulators that ships with XCode, so this could be a challenge to reproduce.

Another option: try another browser. So if you're using Safari, try e.g. Chrome or Firefox.

Thanks for taking the time to respond! I’ve tried refreshing a couple of times and I’m afraid it made no difference. Chrome and Firefox all use the same embedded WebKit, so I’m afraid it still happens on them. I have XCode with an iOS 14 (as well as some similarly-old) Simulators if you’d like me to see if I can isolate and upload that, but according to Apple documentation[0] you should be able to download older simulators from Settings->Components->Add Platforms.

[0]: https://developer.apple.com/documentation/xcode/downloading-...

My XCode only goes back to iOS 15 :(

Downloading it now, will see what happens.

They let me download it, but alas

> The iOS 15.0 simulator runtime is not supported on macOS 15.6.1.