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HTTP headers are what is sent to the browser before the page markup. They often include the page MIME type, charset, status code and encoding. Headers are often overridden to change the page MIME type or redirect the user.

HTTP headers are what is sent to the browser before the page markup. They often include the page MIME type, charset, status code and encoding. Headers are often overridden to change the page MIME type or redirect the user.

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