[wp-trac] [WordPress Trac] #35770: Shortcode fails with 4.4. It is working with 4.3

[WordPress Trac]

#35770: Shortcode fails with 4.4. It is working with 4.3
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 Reporter:  dezio1900          |       Owner:
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Shortcodes         |     Version:  4.4.1
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
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Comment (by dezio1900):

 This topic describes the same issue I am having:
 https://wordpress.org/support/topic/shortcode-broken-with-
 wp-44-upgrade?replies=28

 And this post is the actual answer to what is the bug:
 ''"4.4 "broke" one of my shortcodes too. I tracked it down to the space
 character. Seems that when I originally copied and pasted the shortcode
 into my page, the space character following the shortcode (the delimiter
 space) was not ASCII 32. It was some other space. I fixed the problem by
 deleting the space following my shortcode name and reinserting the space
 with the spacebar. Saved the page and my shortcode started working
 again."''

 When I copy actual shortcode, and manually typed shortcode in Sublime
 Text, and set to show space charachter, I then can see the issue with
 first space after shortcode opening tag:
 http://prntscr.com/a2cksu

 So the dilema is how the shortcode parse changed from 4.3 to 4.4. How it
 successfully proccess that "strange space" char in 4.3 and fails in 4.4.

 Client obviosly used 3rd party WYSIWYG, like Microsoft Word, so it appears
 thats causing the issue.

 So this is definitely a bug, and support for that "strange space" char
 should be put back in shortcode parsing source, in order to support
 pasting from 3rd party WYSIWYG.

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Ticket URL: <https://core.trac.wordpress.org/ticket/35770#comment:7>
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