$ validate-website -s https://cozy.io/ -n
WARNING: Nokogiri was built against LibXML version 2.9.1, but has dynamically loaded 2.9.2
validating https://cozy.io/
.../home/nono/.rubies/ruby-2.2.0/lib/ruby/2.2.0/uri/rfc3986_parser.rb:20:in `split': URI must be ascii only "../images/community/contributors/nicodel.jp\u{11d}" (URI::InvalidURIError)
from /home/nono/.rubies/ruby-2.2.0/lib/ruby/2.2.0/uri/rfc3986_parser.rb:72:in `parse'
from /home/nono/.rubies/ruby-2.2.0/lib/ruby/2.2.0/uri/common.rb:226:in `parse'
from /home/nono/.gem/ruby/2.2.0/gems/validate-website-1.5.3/lib/validate_website/crawl.rb:38:in `block in extract_imgs_from_page'
from /home/nono/.gem/ruby/2.2.0/gems/nokogiri-1.6.6.2/lib/nokogiri/xml/node_set.rb:187:in `block in each'
from /home/nono/.gem/ruby/2.2.0/gems/nokogiri-1.6.6.2/lib/nokogiri/xml/node_set.rb:186:in `upto'
from /home/nono/.gem/ruby/2.2.0/gems/nokogiri-1.6.6.2/lib/nokogiri/xml/node_set.rb:186:in `each'
from /home/nono/.gem/ruby/2.2.0/gems/validate-website-1.5.3/lib/validate_website/crawl.rb:36:in `reduce'
from /home/nono/.gem/ruby/2.2.0/gems/validate-website-1.5.3/lib/validate_website/crawl.rb:36:in `extract_imgs_from_page'
from /home/nono/.gem/ruby/2.2.0/gems/validate-website-1.5.3/lib/validate_website/crawl.rb:63:in `block in on_every_html_page'
from /home/nono/.gem/ruby/2.2.0/gems/spidr-0.4.1/lib/spidr/events.rb:238:in `block in every_html_page'
from /home/nono/.gem/ruby/2.2.0/gems/spidr-0.4.1/lib/spidr/agent.rb:582:in `call'
from /home/nono/.gem/ruby/2.2.0/gems/spidr-0.4.1/lib/spidr/agent.rb:582:in `block (2 levels) in visit_page'
from /home/nono/.gem/ruby/2.2.0/gems/spidr-0.4.1/lib/spidr/agent.rb:582:in `each'
from /home/nono/.gem/ruby/2.2.0/gems/spidr-0.4.1/lib/spidr/agent.rb:582:in `block in visit_page'
from /home/nono/.gem/ruby/2.2.0/gems/spidr-0.4.1/lib/spidr/agent.rb:518:in `block in get_page'
from /home/nono/.gem/ruby/2.2.0/gems/spidr-0.4.1/lib/spidr/agent.rb:684:in `prepare_request'
from /home/nono/.gem/ruby/2.2.0/gems/spidr-0.4.1/lib/spidr/agent.rb:512:in `get_page'
from /home/nono/.gem/ruby/2.2.0/gems/spidr-0.4.1/lib/spidr/agent.rb:578:in `visit_page'
from /home/nono/.gem/ruby/2.2.0/gems/spidr-0.4.1/lib/spidr/agent.rb:249:in `run'
from /home/nono/.gem/ruby/2.2.0/gems/spidr-0.4.1/lib/spidr/agent.rb:231:in `start_at'
from /home/nono/.gem/ruby/2.2.0/gems/spidr-0.4.1/lib/spidr/agent.rb:184:in `site'
from /home/nono/.gem/ruby/2.2.0/gems/spidr-0.4.1/lib/spidr/spidr.rb:96:in `site'
from /home/nono/.gem/ruby/2.2.0/gems/validate-website-1.5.3/lib/validate_website/crawl.rb:44:in `spidr_crawler'
from /home/nono/.gem/ruby/2.2.0/gems/validate-website-1.5.3/lib/validate_website/crawl.rb:21:in `crawl'
from /home/nono/.gem/ruby/2.2.0/gems/validate-website-1.5.3/lib/validate_website/runner.rb:16:in `run_crawl'
from /home/nono/.gem/ruby/2.2.0/gems/validate-website-1.5.3/bin/validate-website:5:in `<top (required)>'
from /home/nono/.gem/ruby/2.2.0/bin/validate-website:23:in `load'
from /home/nono/.gem/ruby/2.2.0/bin/validate-website:23:in `<main>'