I have custom icons that work fine on IOS and Android. When I deploy on the Web, a crossed out box appears in each place in the App where my icon should appear.
ruby-on-rails-3.1
scrollbox
python-decouple
powershell-core
datocms
plotmath
compiler-bug
luajava
localdb
floppy
uft14
vip-architecture
cider
mobilefirst-adapters
jszip
poisson-regression
mariadb-10.6
css-multicolumn-layout
uglifyjs2
bulk-mail
e-notices
asgi
openedge
asprintf
purge
cplisttemplate
hol
google-product-search
tinytest
kite-team-server