To ensure that an application is compatible with all web browser platforms and mobile devices, the application development process should include the following:
Use of web standards: The application should be developed using web standards such as HTML, CSS, and JavaScript, which are supported by all major web browsers and mobile devices.
Testing on multiple platforms: The application should be tested on multiple platforms and devices to ensure compatibility with different web browsers and mobile devices.
Responsive design: The application should be designed with responsive design techniques to ensure that it adapts to different screen sizes and resolutions of mobile devices.
Cross-browser testing: The application should be tested on different web browsers such as Chrome, Firefox, Safari, and Edge, to ensure that it works consistently on all of them.
User agent detection: The application should be able to detect the user agent of the device and web browser accessing it and adapt accordingly.
By incorporating these steps into the application development process, developers can ensure that the application is compatible with all major web browsers and mobile devices.