Add guide/documentation for cross-browser testing

[holic]

It's great that there's a section in the guide for unit testing, but one thing I'm still unclear on is how to effectively cross-browser test my Vue apps. I'm still getting the hang of testing in general and some clarity in this area would be extremely helpful!

Maybe as you're fleshing out Vue Router and adding tests to it, you could document the steps to setting up the testing framework, adding tests, running tests in Sauce Labs, etc.?

[yyx990803]

Hmm, strictly speaking that's not really part of Vue's concern, since most e2e test solutions are based on Selenium and are framework agnostic. Or, if you are interested in cross-browser unit testing, then you can look at how Vue's source code uses Karma to do that.