Using content-disposition is much less appealing when the original
HTML document contains relative URLs. In that case, the refering
element originally (the text/html part) refers to the image using a
name that is not valid when the element is taken out of context..
Would you rather have the following? I don't like using 'filename' in
the content-disposition, since it isn't a file name, but a URI.
I could imagine using "href" or "url", though:
================================================================
1 Content-type: Multipart/Alternative
1.1 Content-Type: Text/plain
Content-Description: plain text version for those who
cannot read HTML
1.2 Content-type: Multipart/Related; type=Text/HTML
1.2.1 Content-Type: Text/HTML
Content-Description: HTML version of the same message,
which may contain external file references
<IMG SRC="../images/picture.GIF">
1.2.2 Content-Type: Image/GIF
Content-Description: the GIF picture
Content-Disposition: INLINE;
href="../images/picture.GIF"
================================================================