[wp-trac] [WordPress Trac] #56699: Remove IE specific checks from default themes

[WordPress Trac]

#56699: Remove IE specific checks from default themes
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 Reporter:  desrosj        |       Owner:  (none)
     Type:  enhancement    |      Status:  new
 Priority:  normal         |   Milestone:  Future Release
Component:  Bundled Theme  |     Version:
 Severity:  normal         |  Resolution:
 Keywords:  needs-patch    |     Focuses:
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Changes (by sabernhardt):

 * milestone:  6.2 => Future Release


Comment:

 #57031 suggested the 6.3 cycle for removing other IE browser support, and
 I would like both changes announced in the same news post and/or dev note.

 For the Twenty Eleven patch:
 1. If we ''only'' make the changes to Twenty Eleven's `header.php`
 template file, that should minimize what breaks. If some people really
 want to maintain support in their sites, then they could do that with a
 different header template.
 2. We could be somewhat selective with the proposed CSS revisions.
 WordPress admin has not supported older IE versions for years, so `editor-
 style.css` should not need to accommodate them. Also, the gradients' solid
 color fallbacks would make their absence very minor. And the negative
 padding values probably never worked (#46771).
 3. Removing the other IE-related CSS could reduce the front-end
 stylesheets by about 1 KB. The difference is small enough to consider
 keeping those for possible continued use in child themes (which I expect
 would be very rare).
 4. To avoid any `404` errors, please _**keep a file**_ at `js/html5.js`.
 The script is not particularly large at about 2.4 KB, so it could stay
 intact. If it is worth removing from the package, however, its contents
 could be replaced with a single-line comment such as "This theme does not
 support old versions of Microsoft Internet Explorer anymore."

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Ticket URL: <https://core.trac.wordpress.org/ticket/56699#comment:8>
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