[Webkit-unassigned] [Bug 167031] New: Media Query should allow negation for media feature when media type is not specified

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=167031

            Bug ID: 167031
           Summary: Media Query should allow negation for media feature
                    when media type is not specified
    Classification: Unclassified
           Product: WebKit
           Version: Safari 10
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: aaron_chu at apple.com

Created attachment 298806
  --> https://bugs.webkit.org/attachment.cgi?id=298806&action=review
reduced test case

Currently, media query can be negated only when the the "not" token precedes the <media-type>. In cases where <media-type> is not specified, <media-feature> is not negated. According to "2.5 Combining Media Features", a <media-feature> should be negated when it is preceded by the "not" token.

specs:
Syntax, BNF
https://www.w3.org/TR/mediaqueries-4/#mq-syntax

Combining Media Features
https://www.w3.org/TR/mediaqueries-4/#media-conditions

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