[wp-trac] [WordPress Trac] #42961: Rest API doesnt handle empty arrays in querystring correctly

[WordPress Trac]

#42961: Rest API doesnt handle empty arrays in querystring correctly
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 Reporter:  steffanhalv   |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  REST API      |    Version:  4.9.1
 Severity:  normal        |   Keywords:
  Focuses:  rest-api      |
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 Sending empty arrays to endpoints through Rest API is not handled
 correctly by WP core.

 Ex.
 Querystring:
 mysite.com/wp-json/...?my_empty_array[]=&... <- This works not

 JSON:
 data: { my_empty_array: [] } <- This works

 When posting using json, empty array is handled correctly. When using
 querystring, it fails.

 Please see https://github.com/woocommerce/woocommerce/issues/18249

 Could also have a possible relationship with ticket:
 https://core.trac.wordpress.org/ticket/42752
 (https://github.com/woocommerce/woocommerce/issues/17954)

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Ticket URL: <https://core.trac.wordpress.org/ticket/42961>
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