[wp-trac] [WordPress Trac] #20337: On theme customizer, back button should close preview mode

[WordPress Trac]

#20337: On theme customizer, back button should close preview mode
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 Reporter:  jane            |       Owner:  koopersmith
     Type:  defect (bug)    |      Status:  new
 Priority:  normal          |   Milestone:  3.4
Component:  Administration  |     Version:
 Severity:  normal          |  Resolution:
 Keywords:  has-patch       |
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Comment (by SergeyBiryukov):

 Replying to [comment:6 nacin]:
 > I think window.history was a reference to history.pushState().

 Ah, thanks. I thought of `pushState()`, but was confused by the fact that
 it's not used anywhere in core yet. Seems `replaceState()` was once added
 in [16615], but then removed in [18028], along with `list-table.dev.js`.

 Wouldn't using `pushState()` introduce an inconsistent behaviour between
 browsers, since it's not supported by IE 9? Or should we bring in some
 external library or another workaround as a fallback?

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Ticket URL: <http://core.trac.wordpress.org/ticket/20337#comment:7>
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