-
For https://bugzilla.gnome.org/show_bug.cgi?id=747301 Use simple HTML5 DOCTYPE for about:legacy-compat HTML5 uses a DOCTYPE without a PUBLIC or SYSTEM identifier. It looks like this: <!DOCTYPE html> I can't use XSLT to output this, because to get a DOCTYPE I have to provide a PUBLIC or SYSTEM identifier. Luckily, the standards folks recognized this and provided this semantically equivalent form for the HTML DOCTYPE: <!DOCTYPE html SYSTEM "about:legacy-compat"> But people don't like seeing the "legacy" identifier in their output. They'd rather see the shiny new DOCTYPE. Since we know that about:legacy-compat is defined by the W3C to be semantically equivalent to the sans-SYSTEM DOCTYPE, we could just special-case it in the HTML serializer in libxml2. So if you set the SYSTEM identifier to "about:legacy-compat", you get an HTML5 short-form DOCTYPE.
7607d9dd