Uncaught TypeError: Cannot delete property 'from' of function Uint8Array error in Android 6.0 and core-js 3.x

[zaaack]

Uncaught TypeError: Cannot delete property 'from' of function Uint8Array

this error comes from eithor exportStatic or exportProto

core-js/packages/core-js/internals/array-buffer-view-core.js

Line 73 in e3b99db

delete TypedArrayConstructor.prototype[KEY];

But it's normal in 2.6.5/

[zloirock]

Sorry, I can't reproduce it. It's tested in Android 6.0:

Could you add a reproducible example?

[zaaack]

@zloirock Sorry, the error comes from user's report, and we didn't have an Android 6.0 device to reproduce, only an error message without error stack. I'll try find the reproducible code after install an android VM.

[zloirock]

Closed as can't reproduce. Waiting for a reproducible example to revisiting it.

[treeandgrass]

i get same problem
array-buffer-view-core.js?ebb5:90 Uncaught TypeError: Cannot delete property 'from' of function Int8Array() { [native code] }

[simonbrent]

I get the same, specifically from the line

delete TypedArrayConstructor[KEY];

This happens in the wild for certain pages of the website I work on, for users with Chrome 45. I have reproduced it using an old version of Chromium, downloaded from https://commondatastorage.googleapis.com/chromium-browser-snapshots/index.html?prefix=Win/338387/

[zloirock]

@simonbrent I haven't a Windows machine at hand, so I can't check it. But I know that this kind of bug is possible in some buggy engine versions. I'll add try / catch here, most likely it will help.

[simonbrent]

@zloirock Thanks. I have tracked it further to any part of our site which uses d3-array, so I guess my next task will be to ask its maintainers to update, once you have released a fix :-) (dur, d3 don't depend on core-js)

[simonbrent]

I can confirm that this fix solves the problem I was seeing. Thanks a lot!