Bypasses for __proto__ string match

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function insertPayload(original, payload) {0x0D
    let result = [];0x0D
    for (let i = 0; i <= original.length; i++) {0x0D
        let newString = original.slice(0, i) + payload + original.slice(i);0x0D
        result.push(newString);0x0D
    }0x0D
    return result;0x0D
}

s = "abc";0x0D
keys = insertPayload("__proto__", fromCodePoint($[i]))0x0D
0x0D
for(i = 0; i < keys.length; i++) {0x0D
    if (typeof s[keys[i]] != "undefined") {0x0D
        log(keys[i]);0x0D
        break;0x0D
    }0x0D
}