[wp-trac] [WordPress Trac] #30366: Twenty Fifteen: make the sidebar sticky for everyone

[WordPress Trac]

#30366: Twenty Fifteen: make the sidebar sticky for everyone
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 Reporter:  celloexpressions  |      Owner:
     Type:  enhancement       |     Status:  new
 Priority:  normal            |  Milestone:  4.1
Component:  Bundled Theme     |    Version:  trunk
 Severity:  normal            |   Keywords:  has-patch needs-testing
  Focuses:                    |
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 The general consensus in #29979 was that the sidebar would ideally scroll
 then fix when it gets to the bottom, then scroll up when the user scrolls
 up, then fix itself at the top until the scroll direction changes again.
 This is how the admin menu and other places behave.

 Per @johnbillion, we can still get this in if we get a patch. Attached
 patch is based on the work from @avryl on #29979 and addresses the mobile
 and Safari issues. Needs testing on iOS. Works in Chrome and IE11 on
 Windows and Safari on Mac.

 See also #30208.

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Ticket URL: <https://core.trac.wordpress.org/ticket/30366>
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