+> I guess this makes sense. I just wonder how well this is actually supported in all
+> browsers.. I looked around and suspect this will work in more recent browsers, but,
+> as an example, https://caniuse.com/ doesn't have that feature listed in their
+> tables. :) -- [[anarcat]]
+
+>> That might well indicate that all major browsers have always supported it so
+>> there is no need to check. I don't see any particular reason why a browser vendor
+>> would not want to accept arbitrary non-whitespace as a valid anchor.
+>>
+>> In practice, minor or old browsers are probably insecure anyway, so I don't care
+>> too much about supporting them perfectly... --s
+
+> After thinking more about this, I don't feel that IRIs are a good
+> solution. Sure, there are machine-readable ways of encoding
+> non-ASCII characters in URLs. But that's not the point here: the
+> point here is to have *human* readable URLs. In the example I give
+> in the plugin documentation, I mention the french word "liberté"
+> which can easily be transliterated to "liberte". By using the
+> RFC3987 scheme, we could use unicode directly in the links (`a
+> href="#liberté"`), but the actual URL would be encoded as
+> `#libert%e9`, which is really not as pretty.
+>
+> I understand you not wanting to introduce another dependency. And I
+> also worry about the transliteration not being stable across
+> releases. After all, it might not even be stable across Unicode
+> releases either! But I'm ready to live with that inconvenience for
+> the user-friendliness of the resulting URLs. --[[anarcat]]
+
+----
+
+Documentation says:
+
+> _Also note that all heading attributes are overriden with the ID tag. If this
+> is not desirable, we'd need to fire up a full HTML::Parser or do some more
+> regex magic to preserve the attributes other than id= which we want to keep._
+
+I think this is a bug, particularly if you are using Pandoc's
+[header attributes](http://pandoc.org/MANUAL.html#extension-header_attributes)
+or similar.
+
+> It's not a bug, it's a limitation. :) But sure, it's a thing. It's an issue in
+> headinganchors as well of course. -- [[anarcat]]
+
+>> No, current/historical headinganchors has a different bug: it ignores headings
+>> that have any attributes, and does not generate anchors for them. That gives it
+>> degraded functionality, but no information loss. I think that's less bad. --s
+
+I think we should try to use an existing ID before generating our own, with the
+generation step as a fallback, just like Pandoc does. If a htmlize layer like
+Text::MultiMarkdown or Pandoc is generating worse IDs than this plugin, the
+the right solution to that is to send a bug report / feature request to
+make its IDs as good as this plugin's, or turn off ID generation in the
+htmlize layer, or stop using Text::MultiMarkdown.
+
+--[[smcv]]
+
+> Agreed. However, the situation I was in was that multimarkdown *and* the
+> headinganchors plugins had issues I had to fix. So it was better and easier
+> for me to just override whatever attributes were there for testing and
+> fixing this in the short term... -- [[anarcat]]
+
+> To bounce on this again: my problem with keeping existing IDs is
+> that it basically makes headinganchors fail to do anything if
+> something else adds the anchors. So I understand where you're coming
+> from with this, but that "bug" was introduced on purpose, to
+> actually fix a problem I was having.
+>
+> So I understand you might not want to *replace* headinganchors
+> completely with this module, but could we at least merge it in so I
+> wouldn't have to carry this patch around forever? :) Or what's our
+> way forward here?
+>
+> Thanks! -- [[anarcat]]
+