sharedcovid (npm): ## Multi Browser Window COVID19 IN NUMBERS Demo App Blog post: <a href="https://medium.com/swlh/expanding-single-page-apps-into-multiple-browser-windows-e6d9bd155d59?source=friends_link&sk=bbfe1dada95c5674669e463f93360822">Expanding Single Page Apps into 
Keywords: ecmascript|framework|frontend|javascript|sharedworker|virtualdom|worker