[Webkit-unassigned] [Bug 258282] REGRESSION (STP 172): Broke custom element built-in polyfill by making form properties non deletable

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=258282

--- Comment #13 from Andrea Giammarchi <andrea.giammarchi at gmail.com> ---
to whom it might concern, this was the polyfill fix and it makes sense to me after reading this discussion:

https://github.com/WebReflection/custom-elements-upgrade/commit/d680cf08e6d265c9cd46845c55b5e9485f361cb9

I should not have tried to re-attach any own property, that's on me, but it was unexpected from any live element to date to expose own properties that could backfire.

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