Thinking on different tools.  Content scraping also missing, in
   addition to spidering.
   What kind of tool would be helpful here?  Assuming that we need to
   build it.
   Maybe a local http server that provides access to a selenium session as
   if it is non-js html?
   Elements with mouse events could be converted to links.
   My interest in this missing area relates to ecommerce scraping.  I'd
   like for people to be able to work around the product search engines
   that use marketing algorithms for all their result orders.  I'd like
   for it to be easy for reseller to seed the inventory of decentralized
   marketplaces from existing platforms.
   The larger corps have been winning the scraping tech race recently, I
   believe.  PhantomJS, which itself was another cultural polyfill for an
   ongoing situation, had a number of libraries and tools, but Selenium
   Webdriver has now replaced by it.
   A web search for "phantomjs OR casperjs spider" turns up some hits.
   "selenium spider" appears to as well.  For
   example: [1]https://scalpel.readthedocs.io/en/latest/selenium-spider/

References

   1. https://scalpel.readthedocs.io/en/latest/selenium-spider/