Description: The ‘X-Content-Type-Options’ header is a security measure implemented in web browsers to prevent incorrect MIME type detection of a response. This header is used to indicate that the browser should not attempt to guess the content type of a resource, but rather rely solely on the content type declared in the ‘Content-Type’ header of the HTTP response. This is crucial to prevent MIME type attacks, where an attacker could manipulate content to execute unintentionally in the user’s browser. By setting this header with the value ‘nosniff’, it ensures that the browser does not interpret the content differently from what has been specified, contributing to greater security in the delivery of web content. The implementation of this header is especially relevant in the context of web security practices, as it allows developers and system administrators to have more precise control over the type of content being served, facilitating problem identification and security auditing in web applications.
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