[wp-trac] [WordPress Trac] #47510: Developer tool - Best Practice - input comment field Does not use passive listeners

[WordPress Trac]

#47510: Developer tool - Best Practice - input comment field Does not use passive
listeners
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 Reporter:  efilippucci             |       Owner:  (none)
     Type:  defect (bug)            |      Status:  new
 Priority:  normal                  |   Milestone:  Future Release
Component:  Comments                |     Version:  5.2.1
 Severity:  normal                  |  Resolution:
 Keywords:  has-patch needs-        |     Focuses:  javascript, performance
  refresh                           |
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Comment (by slkfsdf8y34ljhsfsdfkuhfkl84hj):

 "In order to use passive listeners the handlers need to be written in a
 way that does not rely on event.preventDefault(). "

 Otherwise it won't be compatible with the minority of IE11 users,
 otherwise it would be working as expected?

 I did some tests with the lighthouse scores in terms of ranking and I
 found that on many occasions it helped rankings overall.

 The only big score minus is these passive listeners which can be fixed
 only when using a CDN that basically turns the site into a static one but
 it is a costly solution.

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Ticket URL: <https://core.trac.wordpress.org/ticket/47510#comment:31>
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