1027647 - invalid list-style-type makes ordered list from unordered list

Status: RESOLVED WONTFIX

(Core :: CSS Parsing and Computation, defect)

Description

[Lajos Koszti]

Attachment: invalid-list-style.html

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:33.0) Gecko/20100101 Firefox/33.0 (Beta/Release)
Build ID: 20140619030203

Steps to reproduce:

I made a typo in CSS, where I wrote ul {list-style-type: non;}
Not the missing "e" from the none property value.


Actual results:

In current Firefox nightly the list appeared as an ordered list.
Actually, trying out other invalid values the same happened. 


Expected results:

I would expect to drop that value, and render the list as a regular unordered list.

Comment 1

[Alice0775 White]

Regression window(m-i)
Good:
https://hg.mozilla.org/integration/mozilla-inbound/rev/8b34896e9109
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0 ID:20140612050131
Bad:
https://hg.mozilla.org/integration/mozilla-inbound/rev/c973795d46ae
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0 ID:20140612061232
Pushlog:
http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=8b34896e9109&tochange=c973795d46ae

Triggered by: Bug 966166

Comment 2

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

This is the new expected behavior in http://dev.w3.org/csswg/css-counter-styles-3/#extending-css2 ; the question is whether it's actually compatible with Web content, or enough content uses invalid values that we'll have to change the behavior somehow.

Comment 3

[Benjamin Kerensa [:bkerensa]]

(In reply to David Baron [:dbaron] (UTC-7) (needinfo? for questions) from comment #2)
> This is the new expected behavior in
> http://dev.w3.org/csswg/css-counter-styles-3/#extending-css2 ; the question
> is whether it's actually compatible with Web content, or enough content uses
> invalid values that we'll have to change the behavior somehow.

Since this is intended behavior and probably low impact do you have any interest in tracking?

Comment 4

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

I think it's worth tracking for now, but if significant duplicates don't come in, we should untrack during beta.

Comment 5

[Sylvestre Ledru [:Sylvestre]]

David, I don't see much duplicate here. Should we untrack it now? Thanks

Comment 6

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Yes.

Wontfix for now, though willing to reconsider if the problem appears more significant.

Comment 9

[Kohei Yoshino [:kohei]]

https://developer.mozilla.org/en-US/Firefox/Releases/33/Site_Compatibility#CSS

Comment 10

[R. Schreurs]

I encountered this issue due to a type in XWiki's colibri.css: 
ul {
    list-style-type: bullet;
}
Bullet is a common name for this marker and since two other popular browsers fall back to the default item marker for ul: disc, this invalid value can easily be overseen.

http://jigsaw.w3.org/css-validator/validator, however, correctly reports a warning: "can't find the warning message for style-type".