[office politics]

https://developer.mozilla.org/En/Bro...rowser_Support

Browser Detection and Cross Browser Support
Improper browser detection can lead to web maintenance nightmares. Rethinking the basics of when and how to detect user agents is crucial to creating maintainable, cross browser web content. This article reviews several approaches to browser detection, their usefulness in specific circumstances to arrive at a common sense approach to browser detection.

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adding a second link for ideas on a testing procedure

Cross Browser Support - Policy and Testing