Author:

Addy Osmani is a Developer Programs Engineer on the Chrome team at Google. A passionate JavaScript developer, he has written open-source books like 'Learning JavaScript Design Patterns' and 'Developing Backbone Applications', having also contributed to open-source projects like Modernizr and jQuery. He is currently working on 'Yeoman' - an opinionated workflow for building beautiful applications.

Twitter: Follow Addy Osmani on Twitter

Reliable Cross-Browser Testing, Part 1: Internet Explorer

In a perfect world, cross-browser testing would be straightforward. We would download a legacy version of a browser, run it, and be able to instantly test our pages and scripts without a single care in the world. The reality of cross-browser testing, though, is very different. Issues such as runtime conflicts when running multiple versions of the same browser and inaccurate third-party testing tools mean we can spend hours just evaluating whether a testing set-up is anywhere near reliable.

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I’m a user-interface developer at AOL (yes, we’re not dead yet!), and in this multi-part post I’ll take you through the exact set-up we use to accurately test content that will be potentially viewed by up to millions of users with a very diverse set of browsers. This set-up is similar to the one used by some of my colleagues at Opera, Mozilla and Google, so, fingers crossed, we’re doing this optimally.

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