Many non-REST APIs work with POST requests even for reading data: GraphQL, SOAP and other RPC-APIs being typical examples. However, POST requests cannot be cached and used offline in a Progressive Web App out of the box. The browser's Cache API simply will not accept them. Here is a workaround using a custom cache in InexedDB.
This page checks, which features and APIs important for progressive web apps are supported by your browser. Just visit this page from every browser and device, you mean to support and see, what will work there.
In this tutorial I am going to demonstrate, how to add barcode scanner functionality to an HTML form built with Bootstrap - thus, enabling the user to scan a barcode with the smartphone camera or webcam.
This tutorial shows, how to connect a barcode scanner to a web application based on jQuery. We are going to take a look at the most important settings of the jQuery.ScannerDetection plugin and the first steps to take when starting to work with a new scanner model.
AJAX-driven data tables are a great tool to display large amounts of tabular data. Fetching the data in small portions via AJAX reduces network load and increases rendering performance, which is especially important in mobile web applications. Here is an example, of how the jQuery DataTables plugin can be used in a jQuery mobile app.
jQuery mobile has a built-in possibility to display dialog windows. However, once the dialog opens, the background goes blank instead of still showing the rest of the UI or at least a blurred or semi-transparent version of it. This article demonstrates, how to change this, making dialogs appear over a greyed-out version of the previous page.