Web developers looking to offer a native app feel to their sites’ visitors will most likely consider using the single page app (SPA) approach. SPAs allow for a snappy user experience because redrawing parts of the page does not necessarily require a request to be made to the server. That said, the need occasionally does arise to make API calls from the single page app, and in such cases the app should show some indication to let the user know that something is happening in the background.
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