mirror of
https://github.com/danog/sass-site.git
synced 2024-12-13 18:07:35 +01:00
39 lines
1.2 KiB
Plaintext
39 lines
1.2 KiB
Plaintext
---
|
|
title: "Breaking Change: -moz-document"
|
|
introduction: >
|
|
Firefox used to have a @-moz-document rule requiring special parsing. As
|
|
support is removed from Firefox, Sass is in the process of removing support
|
|
for parsing them.
|
|
---
|
|
|
|
Sass has historically supported a special parsing for the `@-moz-document` rule.
|
|
As [Firefox dropped support for them], Sass will also drop support for the special
|
|
parsing and will treat it as an unknown at-rule.
|
|
|
|
[Firefox dropped support for them]: https://web.archive.org/web/20200528221656/https://www.fxsitecompat.dev/en-CA/docs/2018/moz-document-support-has-been-dropped-except-for-empty-url-prefix/
|
|
|
|
|
|
**There is one exception**: an empty url prefix function is still allowed, as
|
|
that's used in a hack targetting Firefox.
|
|
|
|
<% example do %>
|
|
@-moz-document url-prefix() {
|
|
.error {
|
|
color: red;
|
|
}
|
|
}
|
|
===
|
|
@-moz-document url-prefix()
|
|
.error
|
|
color: red
|
|
<% end %>
|
|
|
|
## Transition Period
|
|
|
|
<% impl_status dart: '1.7.2', libsass: false, ruby: false %>
|
|
|
|
First, we'll emit deprecation warnings for all usages of `@-moz-document`
|
|
except for the empty url-prefix hack.
|
|
|
|
In Dart Sass 2.0, `@-moz-document` will be treated as an unknown at-rule.
|