[issue25228] Regression in cookie parsing with brackets and quotes

[Collin Anderson]

Collin Anderson added the comment:

It should be safe to hard split on semicolon. `name="some;value"` is not valid, even though it's quoted. I think raw double quotes, commas, semicolons and backslashes are _always_ invalid characters in cookie values.

>From https://tools.ietf.org/html/rfc6265:

{{{
 cookie-value      = *cookie-octet / ( DQUOTE *cookie-octet DQUOTE )
 cookie-octet      = %x21 / %x23-2B / %x2D-3A / %x3C-5B / %x5D-7E
                       ; US-ASCII characters excluding CTLs,
                       ; whitespace DQUOTE, comma, semicolon,
                       ; and backslash
}}}

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<http://bugs.python.org/issue25228>
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