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Asked: 2026-05-27T01:20:32+00:00

Sometimes my facebook friend confuses HTTP_REFERER and HTTP_REFERRER, because in the dictionary there is

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Sometimes my facebook friend confuses HTTP_REFERER and HTTP_REFERRER, because in the dictionary there is referrer only.
Why does that misspelled standard protocol define, and why they don’t try to correct the bug?

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  1. Editorial Team

    http://en.wikipedia.org/wiki/HTTP_referrer

    Origin of the term referer

    The misspelling referer originated in the original proposal by
    computer scientist Phillip Hallam-Baker to incorporate the field into
    the HTTP specification.[1] The misspelling was set in stone by the
    time of its incorporation into the standards document Request for
    Comments (RFC) 1945; document co-author Roy Fielding has remarked that
    neither “referrer” nor the misspelling “referer” were recognized by
    the standard Unix spell checker of the period.[2] “Referer” has since
    become a widely used spelling in the industry when discussing HTTP
    referrers; usage of the misspelling is not universal, though, as the
    correct spelling of “referrer” is used in some web specifications such
    as the Document Object Model.

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