‘Refresh’ HTTP header

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As far as I know, Refresh (along with Set-Cookie and possibly some other proprietary pseudo-headers) were created by Netscape in the very early days of the internet and have been basically (but not quite) standard since then. Because just about every browser supports it, Refresh is pretty safe to use — and commonly is.

I guess it never became part of the official standards because they already had provisions for that with the status codes.

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