[wp-trac] [WordPress Trac] #38021: Customize: remove support for IE8

[WordPress Trac]

#38021: Customize: remove support for IE8
------------------------------+----------------------------------------
 Reporter:  celloexpressions  |      Owner:
     Type:  enhancement       |     Status:  new
 Priority:  normal            |  Milestone:  4.7
Component:  Customize         |    Version:
 Severity:  normal            |   Keywords:  needs-patch good-first-bug
  Focuses:                    |
------------------------------+----------------------------------------
 It is difficult to maintain support for Internet Explorer 8, and we
 typically no longer notice issues until close to or even after a release.
 The customizer already doesn't support IE7, or IE8 or 9 with domain
 mapping, so we can build on the `no-customize-support` class to actually
 make the customizer inaccessible on IE8.

 The relevant code is in `wp_customize_support()` in `wp-
 includes/theme.php`. It uses feature detection in JS; we should add a
 check for something that isn't supported by IE8 but is supported by IE9
 and other browsers. Ideally it should be something we've broken in IE8 in
 the customizer before.

--
Ticket URL: <https://core.trac.wordpress.org/ticket/38021>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform