Use the original HTML5 validator service
Use the original HTML5 validator service

mozilla/html5-lint@1d5c7153c02897b14feef60bef01a97193c3e3ff

py-xiaoran/web,Kjwon15/earthreader-web,earthreader/web,earthreader/web,Kjwon15/earthreader-web,py-xiaoran/web,py-xiaoran/web,Kjwon15/earthreader-web,earthreader/web