Index: src/fs.cr
==================================================================
--- src/fs.cr
+++ src/fs.cr
@@ -89,37 +89,44 @@
 # Simple HTTP server for static files.
 
 class Server
   def initialize(config : Config)
     @config = config
+    @root = config.root
     @server = uninitialized HTTP::Server
   end
 
   def process_request(context : HTTP::Server::Context)
     request = context.request
     request_path = request.path
     method = request.method
-    root = @config.root
 
     MyLog.debug "process_request: got path #{request_path}, method #{method}"
 
-    path = File.join(root, request_path)
+    path = File.join(@root, request_path)
     if Dir.exists?(path)
       path = File.join(path, "index.html")
     end
     if File.exists?(path)
-      context.response.content_type = `file -b --mime-type #{path}`.strip
+      content_type = `file -b --mime-type #{path}`.strip
+      context.response.content_type = content_type
+      MyLog.info "Serving #{path}, content type #{content_type}"
       File.open(path) { |file| IO.copy(file, context.response) }
     else
+      MyLog.error "No such file #{path}"
       context.response.respond_with_status(404, "No such file #{request_path}")
     end
   end
 
   def start
-    @server = HTTP::Server.new do |context|
-      process_request(context)
-    end
+    @server = HTTP::Server.new([
+      HTTP::ErrorHandler.new,
+      HTTP::LogHandler.new,
+      HTTP::StaticFileHandler.new(@root, directory_listing: false)
+      ]) do |context|
+        process_request(context)
+      end
 
     if @server
       address = @server.bind_tcp @config.host, @config.port
       puts "Listening on http://#{address}"