[wp-trac] [WordPress Trac] #39550: Some Non-image files fail to upload after 4.7.1

[WordPress Trac]

#39550: Some Non-image files fail to upload after 4.7.1
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 Reporter:  greatislander  |       Owner:  joemcgill
     Type:  defect (bug)   |      Status:  assigned
 Priority:  normal         |   Milestone:  4.7.2
Component:  Upload         |     Version:  trunk
 Severity:  normal         |  Resolution:
 Keywords:  needs-patch    |     Focuses:
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Comment (by greatislander):

 Replying to [comment:9 joemcgill]:
 > In the mean time, it would help use test potential fixes for this issue
 by uploading or linking to example files that were previously working, but
 no longer are.

 Here's the file that first revealed this issue to me:
 [https://github.com/pressbooks/pressbooks/files/632124/styles_language_clean.docx
 styles_language_clean.docx]

 I'm not sure if it has the wrong mimetype because I downloaded it from
 GitHub, but it does—testing against my
 [https://gist.github.com/greatislander/ae54e374d32a8fa2f5a59713548eb46c
 Gist] shows that it's `application/octet-stream`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/39550#comment:10>
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