With the Internet today being accessed on devices and computers of all different screen sizes, we really need to test on as many platforms and devices as possible. We are going to cover how to test for the outdated browser and make your project gracefully downgrade or at least make a pop-up message appear telling the user that their outdated browser is not supported by your project anymore. Of course, you are still going to want to test on current modern browsers such as Chrome, Firefox, Safari, and Opera.
We will be covering the following topics in this chapter:
How to test in all versions of IE
How to use Microsoft Virtual Machines to test in IE for free
The devices you should be testing on
How to test device sizes in Chrome
Other tools you can try out for testing purposes