[Webkit-unassigned] [Bug 141610] New: For many X, X.prototype is an X when it must be a plain object

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=141610

            Bug ID: 141610
           Summary: For many X, X.prototype is an X when it must be a
                    plain object
    Classification: Unclassified
           Product: WebKit
           Version: 420+
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: erights at gmail.com

For example, ES6 specifies that Number.prototype should be a plain object, but it is currently an exotic Number object. 

This is especially problematic for Date, as it opens a potential global communications channel that can only be plugged expensively. See https://code.google.com/p/google-caja/issues/detail?id=1362

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