[wp-trac] [WordPress Trac] #42545: CSS-Grid on about.php needs polyfill for Internet Explorer

[WordPress Trac]

#42545: CSS-Grid on about.php needs polyfill for Internet Explorer
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 Reporter:  Clorith       |       Owner:  ryelle
     Type:  defect (bug)  |      Status:  assigned
 Priority:  normal        |   Milestone:  4.9
Component:  Help/About    |     Version:  4.9
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |     Focuses:  ui
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Changes (by ryelle):

 * keywords:  needs-patch => has-patch


Comment:

 As @melchoyce mentioned in slack, the issues here are more to do with the
 combo of the JS for docking the titles + grid compatibility issues.
 Technically grid is supported in IE11, so we're keeping the grid for the
 layout of header + section, but switching to a flex layout for the items
 themselves. This, plus some updates to the title-length-detection
 javascript seems to fix the layout issues in IE11 and Edge (by my testing
 on browserstack) - it would be great to confirm that with "real" use of IE
 :)

 See [attachment:42545.diff] for the patch. I also ran `grunt postcss:core`
 to make sure the prefixes were in place.

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Ticket URL: <https://core.trac.wordpress.org/ticket/42545#comment:4>
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