I wanted to do something really simple. Content search web part on a blog that only displays blog title and published date (PublishedDateOWSDATE).
When I put it as the second line, I get an error
Object does not support property or method 'indexof' (corerender: ----item-twolines.js)
I would have enough to place the creation date (which would suffice) but at that point nothing is shown.
Content search web part was supposed to be easier to use than content query, while I see you always need massive coding to get it right