fix(loader): respect prefers-reduced-motion#103461
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natemoo-re merged 5 commits intomasterfrom Nov 17, 2025
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Bug: SPA Loader Breaks Reduced Motion Accessibility
The @media (prefers-reduced-motion: reduce) CSS rule is missing from the SVG <style> block. The corresponding template file (src/sentry/templates/sentry/partial/loader.html) includes this rule to disable CSS animations for users preferring reduced motion, but static/index.ejs does not. This breaks the accessibility feature on the SPA loader path.
static/index.ejs#L55-L71
Lines 55 to 71 in f0ec402
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#101654 was regretfully merged without a
(prefers-reduced-motion: reduce)check. This PR implements that check to remove CSS animations and also the JS-driven bleep animation.