gistfile1.txt

    if (article?.dom) {
      const ANCHOR_ELEMENTS_BLOCKED_ATTRIBUTES = [
        'omnivore-highlight-id',
        'data-twitter-tweet-id',
        'data-instagram-id',
      ]

      // Get the top level element?
      const pageNode = article.dom.firstElementChild as HTMLElement
      console.log("pageNode: ", pageNode)
      if (!pageNode || pageNode.childNodes.length == 0) {
        // return []
      }
    
      const nodesToVisitStack: [HTMLElement] = [pageNode]
      const visitedNodeList = []
    
      while (nodesToVisitStack.length > 0) {
        const currentNode = nodesToVisitStack.pop()
        console.log("currentNode: ", currentNode?.nodeType)
        if (
          currentNode?.nodeType !== 1 ||
          // Avoiding dynamic elements from being counted as anchor-allowed elements
          ANCHOR_ELEMENTS_BLOCKED_ATTRIBUTES.some((attrib) =>
            currentNode.hasAttribute(attrib)
          )
        ) {
          continue
        }
        visitedNodeList.push(currentNode)
        ;[].slice
          .call(currentNode.childNodes)
          .reverse()
          .forEach(function (node) {
            nodesToVisitStack.push(node)
          })
      }
    
      visitedNodeList.shift()
      visitedNodeList.forEach((node, index) => {
        // start from index 1, index 0 reserved for anchor unknown.
        node.setAttribute('data-omnivore-anchor-idx', (index + 1).toString())
      })

      console.log("article content:", article.dom.outerHTML)
    }