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Etag HTTP header

  • 02-06-2000 2:26pm
    #1
    Trojan
    Registered Users, Registered Users 2 Posts: 16,413 ✭✭✭✭


    Anyone know offhand what this does? It's a ***** trying to decipher the RFC...

    Cheers,
    Al.

    🎙️ The Recognized Authority Podcast



Comments

  • #2
    SantaHoe
    Closed Accounts Posts: 7,488 ✭✭✭SantaHoe


    Three days and not a single reply...
    I'm thinking nobody knows. smile.gif


  • #3
    Kali
    Closed Accounts Posts: 6,601 ✭✭✭Kali


    i had never heard of them before
    but a search on google reveals this:

    HTTP 1.1 introduced a new kind of validator called the ETag. Etags are unique identifiers that are generated by the server and changed every time the object does. Because the server controls how the ETag is generated, caches can be surer that if the ETag matches when they make a If-None-Match request, the object really is the same.

    basically just for use in cache-control by the relevant user-agent it seems.
    http://www.filmsoc.com

    [This message has been edited by Kali (edited 06-06-2000).]


  • #4
    zenith
    Registered Users, Registered Users 2 Posts: 785 ✭✭✭zenith


    http://lists.w3.org/Archives/Public/w3c-dist-auth/2000JanMar/0276.html gives a backgrounder, but www.apache.org does not use them ... www.microsoft.com, running IIS 5, does

    It looks like

    ETag: "25235253234234:7f3"

    and appears just before the content-length header.

    Does this help?




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