Message-Id: <199911100030.BAA27533@vals.intramed.rito.no> Date: Wed, 10 Nov 1999 01:31:44 +0100 From: Terje Bless <email@example.com> To: W3C Validator <firstname.lastname@example.org> Subject: Re: Valid GIF On 09.11.99 at 13:02, Vivek Shankar <email@example.com> wrote: >The code for the image seems to be inapprporiate the 'gif extension is >missing. Please correct me if I am wrong. Ok. :-) The filename extension is left out to let the server negotiate with the client whether to return a GIF file or a PNG file. PNG is the preferred format but not all clients can handle it so there has to be a fallback to the GIF files. This will of course fail if the server running the validator does not have content negotiation enabled.