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Serving Sa11y Accessibility Checker Locally in Drupal Sites
What happened
A development guide emerged recommending that Drupal sites serve Sa11y accessibility checking tools from local assets rather than external CDNs. The guidance emphasizes that local hosting provides more predictable accessibility validation, particularly in environments with restricted external asset delivery. This approach trades convenience for reliability in accessibility testing workflows.
Business impact
External dependency failures can disrupt accessibility compliance validation, creating blind spots in WCAG testing that could lead to compliance violations in regulated industries.
What this means for your team
UAT teams should evaluate their accessibility testing tool dependencies and consider local hosting for critical validation scripts. Document which accessibility checks rely on external services and establish fallback procedures when those services are unavailable.
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