[Shadow]: Define whether <style>s in shadow trees are loaded (bugzilla: 27375)

[hayatoito]

Title: [Shadow]: Define whether <style>s in shadow trees are loaded (bugzilla: 27375)

Migrated from: https://www.w3.org/Bugs/Public/show_bug.cgi?id=27375

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comment: 0
comment_url: https://www.w3.org/Bugs/Public/show_bug.cgi?id=27375#c0
Cameron McCormack wrote on 2014-11-20 03:46:05 +0000.

Created attachment 1551
test

Consider the attached test. In Chrome, this displays:

null
[object CSSStyleSheet]
null

while in Firefox currently it displays:

[object CSSStyleSheet]
[object CSSStyleSheet]
[object CSSStyleSheet]

The issue is whether the <style> element in the shadow tree should be loaded if it is in a shadow tree but not in the final flattened view of the document. Chrome's behaviour here probably makes sense, but it should be specified somewhere.

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comment: 1
comment_url: https://www.w3.org/Bugs/Public/show_bug.cgi?id=27375#c1
Olli Pettay wrote on 2014-11-20 11:30:38 +0000.

This is related to bug 26850

[hayatoito]

Let me merge this with #56.