[issue22931] cookies with square brackets in value

[Mark Hughes]

Mark Hughes added the comment:

We experimented with a version of the patch for 2.7.9. 

One issue we immediately noticed is that even though disallowed by the spec the use of commas in cookie values is widespread so we needed to add \, to the _LEGAL_VALUES_PATT.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22931>
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