SECURITY WARNING: No secret option provided to Rack::Session::Cookie.
Gemfileでバージョンを指定
gem 'rack', '1.4.1'
参考
SECURITY WARNING: No secret option provided to Rack::Session::Cookie
More than 5 years have passed since last update.
SECURITY WARNING: No secret option provided to Rack::Session::Cookie.
Gemfileでバージョンを指定
gem 'rack', '1.4.1'
SECURITY WARNING: No secret option provided to Rack::Session::Cookie
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