1337166 - stylo: Make sure we don't unintentionally ship new CSS features when we ship stylo

Status: RESOLVED WORKSFORME

(Core :: CSS Parsing and Computation, defect, P5)

Description

[Bobby Holley (:bholley)]

See bug 1337068 comment 3.

In general, Gecko's CSS engine is much more feature-complete than Servo's, but we have no reason to believe it's a strict super-set. We need to audit before shipping.

Comment 1

[Xidorn Quan [:xidorn] UTC+10]

I don't think stylo still supports unprefixed :read-only and :read-write now.

Comment 2

[David Bruant]

Adding dev-doc-needed keyword and ni'ing teoli (who works on CSS and DOM docs IIRC) to keep him informed.
Is there or will these be a way to know the complete list of features stylo has implemented that Gecko didn't have?

Comment 3

[Chris Mills [:cmills]]

As far as I was aware, there is very little stylo implements that Gecko didn't have at all. I've already been in discussion with engineering about differences between Gecko and Stylo, and we've started recording them like this:

https://developer.mozilla.org/en-US/Firefox/Releases/57#Quantum_CSS_notes

I'd like to be involved in the audit mentioned in this bug, so I can document any differences as necessary.

Comment 4

[Chris Peterson [:cpeterson]]

status-firefox57=wontfix unless someone thinks this bug should block 57

Comment 5

[David Bruant]

All the dependent bugs are closed
Is there something else to do here?

Comment 6

[Emilio Cobos Álvarez (:emilio)]

Nope