I think the problem here is "potentially blocked". How do you know what's potentially blocked? Maybe it's listed clearly somewhere in the browser docs, or mayb

I think the problem here is "potentially blocked". How do you know what's potentially blocked? Maybe it's listed clearly somewhere in the browser docs, or maybe it's not. Did they change it between versions? Did you even know about this issue in the first place? I know people like to think of checked exceptions as a failed experiment from the dark past of object oriented programming, but this situation is a great example of statically-typed (or at least statically-checkable) side effects are a huge improvement in code safety.