[wp-trac] [WordPress Trac] #52854: Update polyfill libraries

[WordPress Trac]

#52854: Update polyfill libraries
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 Reporter:  desrosj             |       Owner:  (none)
     Type:  enhancement         |      Status:  new
 Priority:  normal              |   Milestone:  5.8
Component:  External Libraries  |     Version:
 Severity:  normal              |  Resolution:
 Keywords:  needs-patch         |     Focuses:  javascript
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Comment (by desrosj):

 Replying to [comment:4 gziolo]:
 > My quick guess is - as long as we support IE 11 we need all those
 polyfills so it would be a good idea to upgrade them.

 I think, unfortunately, because they are bundled in Core, we'll need to
 keep them in Core for some time. If a plugin or theme is adding the script
 as a dependency, removing it could break their code.

 I checked out the changes in these polyfills, and they all seem relatively
 safe to include. I'm going to update them, and then I'll open a PR for
 updating `objectFitPolyfill` in Gutenberg.

 I think we should split off a separate ticket for the `@babel/polyfill`
 library update.

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Ticket URL: <https://core.trac.wordpress.org/ticket/52854#comment:5>
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