Fast, Efficient, and Effective Cross Browser Testing

What do you think about cross-browser testing?

Developers likely develop on only one browser – and maybe only one operating system. How does an app maker ensure that defects on other browsers will not affect their user base? In theory, cross-browser testing can help companies catch product defects before products get released to customers. But the legacy approach – setting up a bunch of parallel devices and running tests across each – incurs significant engineering skill and resource cost.