Status: New
Owner: ----
Labels: Type-Defect Priority-Medium SES

New issue 1817 by [email protected]: SES should not judge unsafe a platform with a non-whitelisted frozen pure-data property
http://code.google.com/p/google-caja/issues/detail?id=1817

See https://bugzilla.mozilla.org/show_bug.cgi?id=895152
The latest FF Nightly adds the property Number.EPSILON as a non-configurable, non-writable, data property whose value is pure data. In this case, a primitive number which is clearly transitively immutable and harmless. Even though this is not on SES's whitelist, because it satisfies these conditions, SES should judge it to be harmless, and accept the platform even though it cannot remove the non-whitelisted property.

Nevertheless, it is a FF bug (or possibly an ES6 spec bug?) that the property was added as non-configurable.

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