[Webkit-unassigned] [Bug 102276] Object.getOwnPropertyDescriptor() on a non-strict function exposes strict "caller" property

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri May 14 03:17:54 PDT 2021


https://bugs.webkit.org/show_bug.cgi?id=102276

Alexey Shvayka <shvaikalesh at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |shvaikalesh at gmail.com
         Resolution|---                         |CONFIGURATION CHANGED

--- Comment #2 from Alexey Shvayka <shvaikalesh at gmail.com> ---
(In reply to Adam Klein from comment #0)
> Though this is underspecified in the spec (it says that only [[Get]] should
> throw when asked for caller), it seems likely that [[GetOwnProperty]] should
> do the same, and that's what both Chrome and Firefox do.

As of r277026, [[Get]] is aligned with [[GetOwnProperty]] not to return strict callers.
In modern browsers both test cases (adjusted for Firefox having "caller" on Function.prototype) evaluate as `false`.
I am adding test coverage for [[GetOwnProperty]] as part of https://bugs.webkit.org/show_bug.cgi?id=225277.

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