X Content Type Options
Explore how the X Content Type Options header protects your web application by preventing browsers from guessing content types, which can cause security risks. Understand MIME types, the risks of MIME sniffing, and how to implement this header using Helmet for safer HTTP responses.
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When browsers fetch remote sources of content such as JavaScript or images, they are instructed using the Content-Type header on the type of content.
For example, when a PDF content type is fetched by the browser, the server hints the browser by setting the following header: ...