I build a PWA using Angular 9 which can be seen here and I implemented an beforeinstallprompt event handler so as to offer the user a way to install the PWA as
pkcs
bootstrap-datetimepicker
ngx-leaflet
qcombobox
std-ratio
log4j-1.2-cve
systemmodeler
node-webkit
theme-ui
linq-to-xml
idml
amqpstorm
dispatchevent
mat-input
rating-system
buttonbar
openwebbeans
cusignal
multiple-inheritance
flask-cache
google-api-dotnet-client
spotipy
arcgis
google-dfp
two.js
uistoryboard
email-validation
istio
twitter-bootstrap-rails
feign
