2018-05-27 UTC
# 
Loqi [kartikprabhu] Absence of `[alt]` is different from `[alt=""]` https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img#Omitting%20this%20attribute (fragmentioned URL)
So I suggest the following modification to @gRegorLove 's suggestion
- else if `img.u-...