webrick compatiblity with Ruby 2.7

[leimao]

Hello I was using Jekyll based website and I found the following warning/error messages:

$ bundle exec jekyll serve
Configuration file: /home/leimao/GitHub/leimao.github.io/_config.yml
            Source: /home/leimao/GitHub/leimao.github.io
       Destination: /home/leimao/GitHub/leimao.github.io/_site
 Incremental build: disabled. Enable with --incremental
      Generating... 
                    done in 2.164 seconds.
/var/lib/gems/2.7.0/gems/pathutil-0.16.2/lib/pathutil.rb:502: warning: Using the last argument as keyword parameters is deprecated
 Auto-regeneration: enabled for '/home/leimao/GitHub/leimao.github.io'
    Server address: http://127.0.0.1:4000
  Server running... press ctrl-c to stop.
[2020-06-07 21:11:50] ERROR Errno::ECONNRESET: Connection reset by peer @ io_fillbuf - fd:17 
	/usr/lib/ruby/2.7.0/webrick/httpserver.rb:82:in `eof?'
	/usr/lib/ruby/2.7.0/webrick/httpserver.rb:82:in `run'
	/usr/lib/ruby/2.7.0/webrick/server.rb:307:in `block in start_thread'
[2020-06-07 21:11:50] ERROR Errno::ECONNRESET: Connection reset by peer @ io_fillbuf - fd:18 
	/usr/lib/ruby/2.7.0/webrick/httpserver.rb:82:in `eof?'
	/usr/lib/ruby/2.7.0/webrick/httpserver.rb:82:in `run'
	/usr/lib/ruby/2.7.0/webrick/server.rb:307:in `block in start_thread'
[2020-06-07 21:11:50] ERROR Errno::ECONNRESET: Connection reset by peer @ io_fillbuf - fd:17 
	/usr/lib/ruby/2.7.0/webrick/httpserver.rb:82:in `eof?'
	/usr/lib/ruby/2.7.0/webrick/httpserver.rb:82:in `run'
	/usr/lib/ruby/2.7.0/webrick/server.rb:307:in `block in start_thread'

I don't know too much about Ruby so I wonder if this is a webrick problem or a Jekyll problem. Thank you.

[jeremyevans]

As the warning message (/var/lib/gems/2.7.0/gems/pathutil-0.16.2/lib/pathutil.rb:502) states, this appears to be an issue in the pathutil gem, not in webrick. pathutil already has an open issue for this: envygeeks/pathutil#4