Blink HTML parser divergence

[gsnedders]

This Blink bug deals with the tests having diverged from upstream; some of this is deliberate divergence from the spec and AFAIK there are no issues here for that.

Some issues:

• viewTarget attribute normalisation is gone. (It's dropped from SVG 2.0 and has never had its rendering implemented in any browser.)
• filterRes attribute normalisation is gone. (It's sorta gone from the spec and dropped from Gecko as well as Blink (though maybe only at the parser level from Blink?).
• A bunch of SVG fonts stuff is gone (again, attribute normalisation).

I don't know how much else is intention deviations from the spec as opposed to being out of date with the spec.

[domenic]

Regarding the impact on the HTML Standard, HTML just defers to SVG for this sort of thing, right? So as long as SVG updates itself to track these we'll inherit the changed behavior automatically?

[zcorpan]

No.
https://html.spec.whatwg.org/multipage/syntax.html#adjust-svg-attributes

[zcorpan]

@dominiccooney do you have more information about Blink's differences here?

[zcorpan]

@dominiccooney ping

[dominiccooney]

Sorry for the slow reply. I have not dug into this. Probably the quickest path to compatibility is Blink reimporting the upstream tests and then working through the failures.

[annevk]

cc @mfreed7