Rails Cookie Gotchas 
June 19th, 2007
Rails breaks the hash implementation that cookies appear, on the surface, to support.
For whatever reason, symbol access of values doesn’t work but string access does. Also, for whatever reason, the nil? method will not work but the empty? method does. Hopefully this saves somebody some frustration!
request.cookies['note'].value unless request.cookies['note'].empty?
Cookies, yum.
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