H1's inside A's

I know technically the H1 heading tags aren't allowed between A../A,
and Dillo rightfully complains about this:

   "a" is not allowed to contain "h1". -- closing "a"

But it seems like an innocent tiny mistake. Can't dillo linkify anyways,
in addition to throwing this error? Currently the link-information is
lost and only accessibly if I manually view the source and copy-paste
it. Other browsers (i.e. webkitgtk based ones) do this, which is quite
useful.