[wp-trac] [WordPress Trac] #30008: De-registering heartbeat script causes meta boxes to become unresponsive

[WordPress Trac]

#30008: De-registering  heartbeat script causes meta boxes to become unresponsive
--------------------------+-----------------------------
 Reporter:  wycks         |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  4.0
 Severity:  normal        |   Keywords:
  Focuses:                |
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 Using
 {{{
 wp_deregister_script('heartbeat');
 }}}

 Causes the metabox fields under the default editor to not close on click
 and they are not draggable. Tested on WordPress 4.0 twenty-twelve and
 several other themes.

 Steps to reproduce.

 1. Call `wp_deregister_script('heartbeat');` on init.
 2. Go to any post/page/cpt and try to close/open or drag a meta box
 (excerpt, revision, discussion, comments, etc).

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Ticket URL: <https://core.trac.wordpress.org/ticket/30008>
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