[Webkit-unassigned] [Bug 163446] New: JSON.parse should not modify non-configurable properties.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=163446

            Bug ID: 163446
           Summary: JSON.parse should not modify non-configurable
                    properties.
    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

In response to a reviver function's result, JSON.parse modifies an object property using the CreateDataProperty spec function.  CreateDataProperty is specified to fail if the property is non-configurable.  Hence, JSON.parse should not modify non-configurable properties.

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