Function filterClassValue

lib/html.js:30–35

(value)

}

function filterClassValue(value) {
  return (value || '')
    .split(/\s+/)
    .filter(c => c && !isTrashClass(c))
    .join(' ')
}

const DROP_TAGS = new Set(['style', 'noscript'])
const DROP_ATTRS = new Set(['style'])