[wp-meta] [Making WordPress.org] #3497: readme.txt validator does not accept text area input

[Making WordPress.org]

#3497: readme.txt validator does not accept text area input
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 Reporter:  alpipego          |       Owner:
     Type:  defect            |      Status:  new
 Priority:  high              |   Milestone:
Component:  Plugin Directory  |  Resolution:
 Keywords:                    |
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Comment (by SergeyBiryukov):

 Confirmed. The validator calls `window.btoa()` on the input, which fails
 on UTF-8 characters like `—`:

 > Uncaught InvalidCharacterError: Failed to execute 'btoa' on 'Window':
 The string to be encoded contains characters outside of the Latin1 range.

 Introduced in [6479].

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Ticket URL: <https://meta.trac.wordpress.org/ticket/3497#comment:1>
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