[3.11] gh-143916: Reject control characters in wsgiref.headers.Headers (GH-143917) (GH-143973) - #143975
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…Headers (pythonGH-143917) (pythonGH-143973) pythongh-143916: Reject control characters in wsgiref.headers.Headers (pythonGH-143917) * Add 'test.support' fixture for C0 control characters * pythongh-143916: Reject control characters in wsgiref.headers.Headers (cherry picked from commit f7fceed) (cherry picked from commit 22e4d55) Co-authored-by: Gregory P. Smith <68491+gpshead@users.noreply.github.com> Co-authored-by: Seth Michael Larson <seth@python.org>
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gh-143916: Reject control characters in wsgiref.headers.Headers (GH-143917)
(cherry picked from commit f7fceed) (cherry picked from commit 22e4d55)