[wp-trac] [WordPress Trac] #52851: Update the `element-closest` polyfill

[WordPress Trac]

#52851: Update the `element-closest` polyfill
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 Reporter:  desrosj             |      Owner:  (none)
     Type:  defect (bug)        |     Status:  new
 Priority:  normal              |  Milestone:  5.8
Component:  External Libraries  |    Version:
 Severity:  normal              |   Keywords:
  Focuses:                      |
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 The `element-closest` dependency is a polyfill used for the block editor.
 A new version is available so this should be updated.

 What's not immediately clear is what this polyfill is used for and if it's
 still required. It's
 [https://github.com/WordPress/gutenberg/blob/08002b8dcb657145e986b257923440be081f9024/docs/contributors/code/scripts.md
 #polyfill-scriptsdocumented in the Gutenberg documentation], but is not
 defined as a dependency within that repository (most likely because it has
 been in Core for some time).

 The update has relatively minor changes, but confirming that the areas of
 Core relying on this polyfill continue to work properly would be a good
 step to take.

 Currently, version 2.0.2 is bundled with Core. The latest is now
 [https://www.npmjs.com/package/element-closest/v/3.0.2 v3.0.2].

 A full list of changes can be found on GitHub:
 https://github.com/jonathantneal/closest/blob/master/CHANGELOG.md#302-october-31-2019

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Ticket URL: <https://core.trac.wordpress.org/ticket/52851>
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