15 Mar
2026
15 Mar
'26
5:40 p.m.
Hi Schimon and others,
I'm very much against bringing back XHTML-IM, even if I my client still has an
implementation.
For blogging, we are not using that, we are using full XHTML that we sanitize.
It doesn't make sense to have a subset, we have gateways to other protocols,
we convert ATOM/RSS feeds, so we need to support the whole thing.
I was initially in favor of keeping XHTML-IM when it has been deprecated, but
now I find Markup (XEP-0394) to be a far better solution thanks to its clean
separation between content and formatting data. It's extensible, and we can
easily add anything missing.
On the other hand, XHTML-IM is a whole new payload in addition of the plain
text <body>, that means that clients may show totally different content.
People will implement various flavour with more or less element supported (I'm
pretty sure that in practice the `-IM` part will be ignored and people will
just implement whatever they need at some point. While this can also be the
case with XEP-0394, we can add other features as extension, and announce
support of them explicitly.
Anyway, this subject has always been very touchy in the XMPP community, and I
expect lengthy debates again. I'm not sure if I have the time and energy to
follow that.
On a "communication" point of view, I'm not sure if it's a great idea to
be so
indecisive on this topic, we have one solution (XHTML-IM), no it's not good,
let's add 2 others one (styling and markup), no actually the XHTML-IM was not
so bad. Result: 3 extensions (I actually consider that styling and markup are
complementary and not really competing).
So good luck for people going into those discussion, I think that I'll follow
from a distance (except if this ends up in a council vote, in which case I'll
have to know various arguments, but I'm not looking forward for that to be
honest).
Best,
Goffi
Le dimanche 15 mars 2026, 02:27:37 heure normale d’Europe centrale Schimon
Jehudah via Standards a écrit :
Greetings.
I am not an XSF member, yet I am interested to reinstate XHTML-IM.
I have useful ideas that would be possible with XHTML-IM.
Nevertheless, even without new ideas, I deem that XEP-0071 should be
reinstated with added security concerns;
Email software also handle (X)HTML, and so many other software, while
implementing security measures; and
Therefore, I deem that, XEP-0071 should be reinstated.
Kind reagrds,
Schimon
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