Hey guys,

I've been developing with Thin since day 1 (many months) and today, as I 
started moving everything to test on production (with Unicorn) started getting 
this weird error.

I am using Sinatra, and have been setting my cookies like so:

         response.set_cookie('foo', {
            :value => "bar",
            :path => '/',
            :expires => Time.today+14400
         })

In Thin, Webrick, Passenger, this seems to work fine. However in Unicorn I get 
a big fat ugly error:

# Rack::Lint::LintError at /login
# a header value must be a String, but the value of 'Set-Cookie' is a Array
# 
/opt/ruby-enterprise-1.8.7-2010.01/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/lint.rb:
 in assert, line 18

I'm not really sure what this means since :value is a string. I am using the 
following versions:

- REE (1.8.7-2010.01)
- Rack 1.1.0
- Unicorn 0.96.0
- Latest Sinatra from source

Does anyone have any input as to why this is happening? I have been able to 
re-produce this on a 32-bit CentOS box and my local MacBook Pro (Snow Leopard).


Cheers,

-- 
Travis Bell
http://www.twitter.com/travisbell
http://www.twitter.com/themoviedb



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