Re: [WICG/webcomponents] [scoped-registries] Interaction with HTML element's overridden constructor steps (Issue #969)

> This isn't a thing in the current proposal. Calling constructors is only supported for the global registry:

Yes, I meant pretend it’s the internal invocation of Foo (hence the labeling argument). It’s not the most artful demo, admittedly :)

> Recursively calling a constructor before super() can get individual instances swapped already.

Right, in the upgrade path, but a TypeError is thrown if the expected instance isn’t returned (“...must not return a different object”). That’s why I asked about whether a similar exception could/would be thrown in this scenario.


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