Are you using a Mac or another Apple iDevice and think you found a keyboard bug? Try:
- Enable Full Keyboard Access (FKA) on macOS from Apple Support.
- Enable Tab support in desktop Safari from Apple Support.
- Enable FKA on iOS from Apple Support.
- Enable FKA on iPadOS from Apple Support.
Those links could dry up some day, but there are plenty of existing articles and posts that go into the settings in more detail (with screen shots):
- Basic keyboard shortcut support for focused links, 21 August 2024 by Eric Bailey (not exclusive to Apple platform).
- How to keyboard navigate websites in Mac browsers, 24 March 2023 by Curtis Wilcox on the Harvard University support blog.
- How to use the keyboard to navigate on Safari, 6 October 2020 by Martin Underhill.
- Your Accessibility Claims Are Wrong, Unless… (links to the “Other AT” heading), 14 November 2022 by me.
- Browser keyboard navigation in macOS, 29 December 2017 by Scott Vinkle, updated 15 November 2019 by Erin Olmon for The A11y Project.
- How to activate keyboard navigation on MacOS, undated, by Rian Rietveld for The A11Y Collective
- Enabling Keyboard Accessibility on a Mac, undated at Deque University.