removes all attributes from a dom node and its children

recursive-remove-attributes.js

// recursively remove all attributes from a node and all its children
const recursiveRemove = node => {
  removeAttributes(node)
  while (node.childNodes.length > 0) {
    for (let child of node.childNodes) {
      node = child
      if (node.nodeName !== 'IMG') {
        recursiveRemove(child)
      }
    }
  }
}

// remove all attributes from a dom node
const removeAttributes = node => {
  const attributes = node.attributes
  if (attributes) {
    Object.entries(attributes).forEach(attr => {
      const name = attr[1].nodeName
      node.removeAttribute(name)
    })
  }
}

const node = document.querySelector(document.body)
recursiveRemove(node)