[Bug-wget] Difficulty downloading a simple but JS-using website

[Jeffrey Fetterman]

I'm using the latest version of wget2 as of 12/29/2018 (just freshly
compiled it to make sure a bug I've reported is still an issue) and I've
been running into problems.

My first problem is something I've reported on the wget2 gitlab, which is
'--convert-links' breaking if '--adjust-extension' or '--html-extension'
being used. So I'm omitting that parameter for now.

My second is, for whatever reason, even with --span-hosts set, I'm not able
to get all the contents I need from the site to display it correctly. Here
are some command lines I've tried:

wget2 --recursive --timestamping --level=1 --robots=off --random-wait
--convert-links --span-hosts https://lingojam.com/SuperscriptGenerator
wget2 --recursive --timestamping --level=5 --robots=off --random-wait
--convert-links --span-hosts --page-requisites
https://lingojam.com/SuperscriptGenerator
wget2 --mirror --robots=off --random-wait --convert-links --page-requisites
https://lingojam.com/SuperscriptGenerator

There's no errors in console (and I do get color coded errors so I don't
miss them) so I'm not sure what I should do now.