- From: Silas S. Brown <ssb22@cam.ac.uk>
- Date: Sun, 28 Feb 1999 12:16:35 +0000
- To: w3c-wai-er-ig@w3.org
- CC: ping@lfw.org
Hi all, Please could someone make this an RFC or something? (My access gateway now implements it, although the update might not have propagated to all copies if you're reading this the same day I wrote it.) ==================================================================== Standard for Mediator Warnings (Proposed by Silas Brown, 28th February 1999) A "mediator" is defined as any program that acts as a proxy (whether or not it is actually implemented as a proxy) with the purpose of modifying HTML in some way. This standard enables HTML documents to embed warning messages for users of specific mediators. Mediators conforming to this standard should add these warning messages at the top of the page; other mediators and normal browsers should ignore them. An example of its use is that a mediator can embed a message for itself or for other mediators, warning about redundancy, but there is nothing to stop messages from being embedded in static documents. A MIME header can contain an arbitrary number of X-Mediator-Warning lines. The syntax of each line is: X-Mediator-Warning: name=message where 'name' is the canonical name of the mediator and 'message' is the message that this mediator should display. Any mediator that supports this standard should add its canonical name to the MIME header of any page it returns, using the following syntax: X-Mediator-Name: name Canonical names are not case sensitive. They are formed from ASCII characters between 33 and 126 inclusive, except 61 (the '=' sign). No spaces may be added before the '=' sign. Both of these can also be done in the HEAD of the document itself, using META tags, as follows: <META HTTP-EQUIV="X-Mediator-Warning" CONTENT="name=message"> <META HTTP-EQUIV="X-Mediator-Name" CONTENT="name"> None of the above is case sensitive. Notes: 1. It is left unspecified whether or not messages may contain HTML tags, since this depends on the context of the mediator. This standard does not guarantee that mediators implementing it will leave HTML tags untouched, or even process them sensibly. 2. Messages are unformatted. It is assumed that, if several X-Mediator-Warning lines are present, each one is a different warning. You should not begin a new X-Mediator-Warning line to insert a line break. ==================================================================== Regards -- Silas S Brown, St John's College Cambridge UK http://epona.ucam.org/~ssb22/ "Anyone inexperienced puts faith in every word, but the shrewd one considers his steps" - Proverbs 13:16
Received on Sunday, 28 February 1999 07:16:39 UTC