View difference between Paste ID: yCfPhSsX and 77iYiPFH

 private def start_server(port)
-      ws_handler = ->( ws : HTTP::Websocket, ctx : HTTP::Server::Context ) do {
+      ws_handler = ->( ws : HTTP::Websocket, ctx : HTTP::Server::Context ) do
         loop do
           select
             when msg = chan.receive then ws.send msg
             when timeout 1.second then nil
           end
         end
-      }
+
 
       server = HTTP::Server.new([
         HTTP::ErrorHandler.new,
         HTTP::LogHandler.new,
         HTTP::CompressHandler.new,
         HTTP::WebocketHandler.new(ws_handler),
         HTTP::StaticFileHandler.new("./output/", directory_listing: false),
       ]) do |context|
         if is_html_index_request?(context)
           context.response.status_code = 301
           context.response.headers["Location"] = "#{context.request.path}index.html"
           puts "\nRedirecting implicit HTML index request..." # TODO colorize
         else
           context.response.status_code = 404
           STDERR.puts "\nFile not found!" # TODO colorize
         end
       end
 
       address = server.bind_tcp port
       puts "Listening on http://#{address}"
       server.listen
     end