We fetch and interpret wiki page json for many reasons. Here we collect and distribute as an ES6 module our functions found most useful. github 
v1
page/page-content-indexing
We made some pages from travel photos. We will now try interpreting them as system components connected by info on this page and maybe elsewhere.
http://code.fed.wiki/assets/page/page-content-indexing/test.html HEIGHT 400
We offer a sample script that finds and reports pages with html images. Click titles to browse. github
http://code.fed.wiki/assets/page/page-content-indexing/index-tag-img.html HEIGHT 300