Issue #10152 has been updated by ojab ojab.
There is an issue not only for non-breaking space, but also for other unicode spaces, see #7845. For example (excerpt from rails String#squish testcase) `%{\u205f\u3000 A string surrounded by various unicode spaces, with tabs(\t\t), newlines(\n\n), unicode nextlines(\u0085\u0085) and many spaces( ). \u00a0\u2007}`.
So I think that this ticket should be closed in favour of #7845.
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Feature #10152: String#strip doesn't remove non-breaking space
https://bugs.ruby-lang.org/issues/10152#change-52127
* Author: Adrian Mazur
* Status: Open
* Priority: Normal
* Assignee:
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String#strip doesn't remove non-breaking space.
~~~ruby
2.1.2 :001 > "\u00A0".strip
=> ""
~~~
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https://bugs.ruby-lang.org/