[wp-trac] [WordPress Trac] #51348: Trailing slash redirect removes pipes from query strings

[WordPress Trac]

#51348: Trailing slash redirect removes pipes from query strings
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 Reporter:  simjost       |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Permalinks    |    Version:  5.5.1
 Severity:  normal        |   Keywords:
  Focuses:                |
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 We are using some query strings for tracking and campaign purposes and
 some of them contain pipes.
 An example:
 {{{https://example.com/page?key=value1|value2}}}

 When using one of the template permalinks a trailing slash is added at the
 end and WordPress will redirect from non trailing slash url to a trailing
 slash one. Same goes the other way around when a custom permalink is set
 without a trailing slash and an url with a trailing slash is accessed.

 We noticed, that during this redirect all pipes in the query string are
 lost/removed/stripped.
 The example above will result in:
 {{{https://example.com/page/?key=value1value2}}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/51348>
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