Design for more than the expected setup
Browser differences, slow connections and disabled JavaScript can change whether visitors can reach the same information. The Frameworks argues that designers and developers should consider those conditions alongside individual access needs, including keyboard navigation and browsers that read webpages aloud. The practical question is not simply whether a page looks right, but whether people can navigate it and access its information using their own setup.
The Frameworks involves developers in the design process rather than working in separate silos, aiming to prevent obstacles to execution later. For teams commissioning interactive websites, that means making browsing conditions part of design decisions, not treating them as a finishing check. Smashing Magazine explained in 2025 that ARIA support depends on the combination and versions of operating system, browser and assistive technology, so specification compliance alone does not establish that an interaction works for users.
Sources: Designing and developing web experiences for everyone