Allow more characters in header values - #68
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njsmith merged 1 commit intoMay 6, 2018
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The RFC says we should reject any header value that contains control characters. But apparently in the real world, you have to both accept and produce these sometimes (e.g. Google Analytics cookies use them). As a compromise, we now accept most control characters, but continue to disallow NUL (\x00) and all whitespace (\t\n\r\f\v and space), except that space and tab are allowed inside header values when surrounded by non-whitespace characters. Closes: python-hypergh-57, python-hypergh-58
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## master #68 +/- ##
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Coverage 100% 100%
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The RFC says we should reject any header value that contains control
characters. But apparently in the real world, you have to both accept
and produce these sometimes (e.g. Google Analytics cookies use them).
As a compromise, we now accept most control characters, but continue
to disallow NUL (\x00) and all whitespace (\t\n\r\f\v and space),
except that space and tab are allowed inside header values when
surrounded by non-whitespace characters.
Closes: gh-57, gh-58