We run our extensive test suite against the following browsers: the latest versions of Chrome,

Firefox, Safari, and Safari for iOs, as well as Internet Explorer versions 9-11. See {@link guide/ie

Internet Explorer Compatibility} for more details on supporting legacy IE browsers.

If a browser is untested, it doesn't mean it won't work; for example, older Android (2.3.x)

is supported in the sense that we avoid the dot notation for reserved words as property names,

but we don't actively test changes against it. You can also expect browsers to work that share

a large part of their codebase with a browser we test, such as Opera > version 12

(uses the Blink engine), or the various Firefox derivatives.