RESOLVED WONTFIX 92192
[Shadow DOM] descendant selector doesn't work across shadow boundaries. 
https://bugs.webkit.org/show_bug.cgi?id=92192
Summary [Shadow DOM] descendant selector doesn't work across shadow boundaries.
Hajime Morrita
Reported 2012-07-24 18:49:06 PDT
If an ascent is in light DOM and descendant is in shadow, descendant selector doesn't work.
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Hajime Morrita
Comment 1 2012-07-24 19:18:21 PDT
*** Bug 89169 has been marked as a duplicate of this bug. ***
Shinya Kawanaka
Comment 2 2012-07-24 22:36:50 PDT
I'm not sure this is a desired behavior. I believe this is sometimes useful though...
Dominic Cooney
Comment 3 2013-01-07 23:24:11 PST
The spec is quite specific on this point: <http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#styles> "Even when the apply-author-styles is set, the selectors still must not cross the shadow boundary per scoping constraints. In other words, with apply-author-styles set, the document CSS rules only match wholly inside or outside of the shadow tree." This is the wrong forum for a spec bug; it should be taken up in the W3C.
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