> On Feb 19, 2015, at 9:23 AM, David Bruant <[email protected]> wrote:
> 
> Hi,
> 
> Half a million times the following meta-exchange happened on es-discuss:
> - if an attacker modifies Object.prototype, then you're doomed in all sorts 
> of ways
> - Don't let anyone modify it. Just do Object.freeze(Object.prototype)!

Depending on your goals you could use Object.seal. It prevents new properties 
from being added, but allows you to modify existing properties. From there you 
could selectively re-define the existing properties with Object.defineProperty 
and set writable:false.

Although I wouldn’t trust the browser anyway and verify everything server side.

Luke
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