On Sat, 13 Aug 2005, Bent Lynggård wrote: > Your validator accepts <script type="javascript" ...> as a valid element. That's a tag, not an element, but basically a validator _must_ accept the construct because it _is_ valid according to the document type definition used. So would <script type="almost whatever I put here!"> be. > Internet Explorer 6, Netscape 8, Firefox 1, and Opera 8 for Windows all > ignore such script element. Not really. They just treat its content as being in an unrecognized scripting language. > As I read http://www.ietf.org/rfc/rfc2045.txt page 10, the type attribute > must have a type/subtype format, i.e. text/javascript. According to the authoritative registry of media types, http://www.iana.org/assignments/media-types/ the type text/javascript is obsolete, and application/javascript is what you should use for JavaScript. Whether browsers catch this up is a different issue; so is question whether source programs in a high-level languages _should_ have primary type text, application, or something else. Now returning to validation,... > Shouldn't the > validator mark type="javascript" as an error? No, and it must not; it might conceivably issue a warning, but that would mean that it works as an informal checker along with its role as a validator. The attribute is declared with CDATA value, which basically means "anything goes", and a validator thus _must_ accept anything here. The story is the same for attribute values that are specified as URL values in the prose of the HTML specification; from the validator viewpoint, they are just CDATA. If you regard this as too permissive, then the problem is in the DTD, not in the validator, which by definition runs a check against a DTD. Actually, the problem is deeper: in the metalanguage used for writing a DTD, since the metalanguage would not let us specify, for example, that an attribute's value shall be of the form "foo/bar", where foo and bar are names. More on what validation is: http://www.cs.tut.fi/~jkorpela/html/validation.html -- Jukka "Yucca" Korpela, http://www.cs.tut.fi/~jkorpela/Received on Sunday, 14 August 2005 06:53:11 UTC
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