The document discusses test-driven development (TDD) of jQuery code without using a browser. It mentions writing request specs and using Capybara for TDD in Rails applications. It also references the Jasmine JavaScript testing framework. The document then asks about the claim of TDD without a browser and provides a link to Node.js, explaining that it allows setting up a fake browser window along with frameworks, templates, calls to execute code, fixture setup, and specs using the jsonform project on GitHub.