a11y Testing Is Broken: How Lighthouse and Axe Fail in Real Projects

This Talk discusses the accessibility efforts at Discord, focusing on keyboard navigation and the challenges faced with implementing focus rings and outlines. The speaker showcases a unified focus ring system and a saturation slider to address accessibility concerns. They also highlight the implementation of role colors and the use of CSS filters for accessibility improvements. The Talk concludes with insights on runtime accessibility checking and the development of a performant core runtime system for checking accessibility issues.

AXe is an accessibility engine for automated web UI testing that runs a set of rules to test for accessibility problems. It can be configured to disable or enable specific rules and run based on tags. Axe provides various options, but axe linter does not support all options. The importance of investing time and resources in accessibility is emphasized, as it benefits not only those with disabilities but improves the web for everyone. Manual testing is also highlighted as a necessary complement to automated tests for addressing accessibility issues.

Nested interactive elements can cause accessibility issues on websites, and the speaker shares a personal experience with an accessibility bug involving a list component. Mitigating nested interactive structures involves limiting these patterns during development and restructuring existing elements. The speaker provides recommendations for improving accessibility, such as adjusting role properties and gathering user feedback. The conclusion emphasizes the importance of accessible solutions and encourages sharing resources to build more inclusive experiences.

This talk focuses on building a fast and accessible website for all users, highlighting the importance of performance and user experience optimization. It emphasizes the need for adaptive implementation to cater to different devices and user conditions. The talk also discusses the factors beyond the developer's control, such as screen size, browsers, devices, internet connection, and sitting position. It highlights the significance of optimizing image components for various devices and the role of browser support and rendering engines. The speaker discusses the use of future APIs and the challenges of browser compatibility, as well as optimizing image formats and bundler compatibility. The talk provides insights on controlling bundler and device compatibility, optimizing CPU usage, internet connection, and JavaScript form submission. It concludes with a proposal to respond with save data instead of effective type for limited internet connections and recommends using React with adaptive hooks for better user experiences. Overall, the talk covers essential aspects of building a fast and accessible website.

This Talk explores the intersection of accessibility and test-driven development (TDD) in software development. TDD is a process that involves writing tests before writing production code, providing a safety net for code changes. The Talk demonstrates how to apply TDD principles to real-life examples, such as filling out a form, and emphasizes the importance of user-centric testing. By using atomic design principles, code can be organized in a clean and easy way. The Talk also discusses the use of labels and test IDs in tests for improved accessibility.