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Sams Teach Yourself SVG in 24 Hours by Micah Laaker

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Viewer Detection

With the proliferation of Flash sites came the proliferation of “plug-in detection scripts.” These detection scripts consisted of code that could be used to detect the computer platform, browser vendor and version, and plug-in vendor and version. By checking these attributes, a Web page could redirect users that didn't have the technology necessary to correctly view the advanced content. For example, you could have different versions of a Web site that were targeted to browsers based upon their capabilities.

Such detection scripts have become commonplace with the widespread use of Flash, which hasn't always been such a standard part of Web browsers. No one wants a user to arrive at a Web page only to see a broken graphic due ...

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