ng4-loading-overlay CDN by jsDelivr - A CDN for npm and GitHub
How to add loading spinner in Angular with RxJS » Zoaib Khan
Table: Show a loading overlay on the entire tbody · Issue #316 · carbon-design-system/carbon-components-angular · GitHub
GitHub - bsalex/angular-loading-overlay-http-interceptor: Integration of angular-loading-overlay with angular $http service to show spinner on every request
Angular2: Using custom loader / spinner as service in Angular 2 application – Muhammad Hassan
AngularJS Based Loading Spinner & Overlay - Stack Overflow