Re: Possible use of <INSERT> - serious inquiry

Rainer Klute (
Tue, 19 Mar 1996 15:55:49 +0000

Message-Id: <>
To: Abigail <>,
Cc: "Rainer Klute" <>
Subject: Re: Possible use of <INSERT> - serious inquiry 
In-Reply-To: Your message of Tue, 19 Mar 1996 15:05:16 +0100.
Date: Tue, 19 Mar 1996 15:55:49 +0000
From: Rainer Klute <>

>++ <insert
>++ 	type="text/html"
>++ 	data=""
>++ >
>++ </insert>
>++ If it isn't possible, wouldn't this be a worthwhile extension to the 
>++ <INSERT> capability?
>I do not think so.  Using the http protocol, it is the _server_ which
>gives out the information about the document type. What should
>a user agent do if the <insert> type says 'image/gif', but
>the server gives 'image/jpg'? What if the type isn't fixed in advance?
>How would you do it with content negotiation?

I think the original approach fits very well with content
negotiation. The attribute type="text/html" is indeed a content
negotiation, since the client requests a piece of data in
text/html format. If the server couldn't deliver it in the
requested format it shouldn't deliver anything.

One could even extend the proposal to allow things like
type="text/html, text/plain" requesting text in HTML or plain
format. Or consider type="image/*" (any image type) type="*/*"
(insert whatever is there).

Best regards
Rainer Klute

  Dipl.-Inform. Rainer Klute        NADS - Advertising on nets
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