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Web application usability

Figure 8-3

This is an important part of Web application usability. Many sites provide a generic login form that any

browser can use even though the internal functionality requires a specific browser. This login page

ensures that users of the Web application have the minimum requirements necessary to access all its fea-

tures without making a trip back to the server.

Summary

In this chapter, you’ve learned how to detect browsers, platforms, and operating systems using the navi-

gator object, and more specifically, the browser user-agent string. You built a browser and operating sys-

tem detection script that accurately detects the most common Web browsers and operating systems. The

detection script makes use of skills you’ve learned earlier in the book, such as string manipulation and

regular expressions.

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Browser and Operating System Detection

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