I'm wondering how many automated tests this change broke.
Yes, I know it's not the example.com's fault, and it's a side effect of Hyrum's Law:
> This is not a service, avoid relying on it for testing and monitoring purposes.
Don't we all have a few fragile tests?
that's a really good point I'd not considered but if you just hash the response and the followups remain consistent (they do in this case)... you're gonna do just fine.
That's an excellent reason to change the page design occasionally, so that people learn not to rely on it (the hard way if necessary).