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Fix prototype poisoning #46

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Fix prototype poisoning #46

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@mdnsk mdnsk commented Oct 23, 2024

Fixes prototype poisoning vulnerability.

Current output of deepClone:

deepClone({ user: 'John Doe', ['__proto__']: { admin: true } }).admin;
// true

Output of deepClone from this MR:

deepClone({ user: 'John Doe', ['__proto__']: { admin: true } }).admin;
// undefined

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