[wp-trac] [WordPress Trac] #35331: Update external Prototype library to 1.7.3

[WordPress Trac]

#35331: Update external Prototype library to 1.7.3
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 Reporter:  mikemanger     |      Owner:
     Type:  enhancement    |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Script Loader  |    Version:  trunk
 Severity:  normal         |   Keywords:
  Focuses:                 |
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 Mostly bug fixes for newer versions of IE, including a very annoying "This
 page uses Java" popup.

 [https://github.com/sstephenson/prototype/compare/1.7.1...1.7.3]

 http://prototypejs.org/2014/04/18/prototype-1-7-2/

 http://prototypejs.org/2015/09/24/prototype-1-7-3/

 I could only see it breaking things if people (like me) have added work
 arounds for the old version?

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Ticket URL: <https://core.trac.wordpress.org/ticket/35331>
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