[Webkit-unassigned] [Bug 155820] New: Webkit supports generated content on any element

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=155820

            Bug ID: 155820
           Summary: Webkit supports generated content on any element
    Classification: Unclassified
           Product: WebKit
           Version: Safari 9
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: gwhit at microsoft.com

What steps will reproduce the problem?
(1) Open https://jsfiddle.net/btw9uqn6/

What is the expected output?
No image is seen

What do you see instead?
An image is inserted into the DOM element

Additional information:
-----------------------
Gecko: No Repro
Edge: No Repro
Webkit: Repro
Blink: Repro

What the specs say
-----------------------
The CSS 2.1 specification states (https://www.w3.org/TR/CSS2/generate.html#content) that it applies to :before and :after psuedo elements. While the css-content-3 allow for it to be on all elements but this specification is not ready for implementation per the red error note (https://drafts.csswg.org/css-content-3/#inserting-replacing-content).

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