[wp-trac] [WordPress Trac] #38585: Exit `wp-custom-header.js` gracefully in browsers without `addEventListener` support.

[WordPress Trac]

#38585: Exit `wp-custom-header.js` gracefully in browsers without
`addEventListener` support.
---------------------------+-------------------------
 Reporter:  peterwilsoncc  |       Owner:
     Type:  defect (bug)   |      Status:  new
 Priority:  normal         |   Milestone:  4.7
Component:  Themes         |     Version:  trunk
 Severity:  normal         |  Resolution:
 Keywords:  has-patch      |     Focuses:  javascript
---------------------------+-------------------------
Changes (by peterwilsoncc):

 * keywords:   => has-patch
 * version:   => trunk


Comment:

 [attachment:38585.diff] adds required check.

--
Ticket URL: <https://core.trac.wordpress.org/ticket/38585#comment:1>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform