Good day, i tried to enable https secure connection for my rails application. First of all, set config.force_ssl = true in application.rb only. So, re-started rails server, but there was error: "HTTP parse error, malformed request (): #<Puma::HttpParserError: Invalid HTTP format, parsing fails." Also, i created SSL certificate with command: "openssl req -x509 -sha256 -nodes -newkey rsa:2048 -days 365 -keyout localhost.key -out localhost.crt" then put it in server directory. Then started my server with command: rails s -b 'ssl://localhost:3000?key=path/to/file/localhost.key&cert=path/to/file/localhost.crt' But i had new error How should i solve this problem?( Are there any solutions of enabling https?