old_contents: 'use strict';
  (function(_htmlTag) {
    _htmlTag.className = _htmlTag.className.replace(/\bno-js\b/, '');
  })(document.documentElement);
  
new_contents: 'use strict';
  (function(_htmlTag) {
    _htmlTag.className = _htmlTag.className.replace(/\bno-js\b/, ' js ');
  })(document.documentElement);
  
subject: 修正 init js