[Webkit-unassigned] [Bug 163160] New: Object.freeze() and seal() should throw if [[PreventExtensions]]() fails.
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Fri Oct 7 17:24:52 PDT 2016
https://bugs.webkit.org/show_bug.cgi?id=163160
Bug ID: 163160
Summary: Object.freeze() and seal() should throw if
[[PreventExtensions]]() fails.
Classification: Unclassified
Product: WebKit
Version: WebKit Local Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: JavaScriptCore
Assignee: webkit-unassigned at lists.webkit.org
Reporter: mark.lam at apple.com
See https://tc39.github.io/ecma262/#sec-object.freeze and https://tc39.github.io/ecma262/#sec-setintegritylevel. If O.[[PreventExtensions]]() returns false, we should throw a TypeError but currently does not.
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