Would using a libmagic based tool to detect the magic bytes and content type be a valid mitigation strategy? The Node library mmmagic (https://github.com/mscdex

Would using a libmagic based tool to detect the magic bytes and content type be a valid mitigation strategy? The Node library mmmagic (https://github.com/mscdex/mmmagic https://github.com/mscdex/mmmagic) already does this.