Issues

• [eslint-plugin] valid-styles rejects <progress> pseudo-elements (::-webkit-progress-bar, ::-webkit-progress-value, ::-moz-progress-bar)

  facebook/stylex#1967 · Filter by author sp-kblazek opened on Oct 20, 2026

• processStylexRules is O(rules × consts) when defineConsts is used

  facebook/stylex#1960 · Filter by author maxmurdoch opened on Oct 18, 2026
  1

• Numeric constants (from defineConsts) behave differently at runtime and transform-time

  bug
  facebook/stylex#1946 · Filter by author hen-x opened on Oct 12, 2026
  1

• [unplugin] .stylex imports bypass native resolution, so #/* subpath imports fail

  facebook/stylex#1940 · Filter by author MWhite-22 opened on Oct 7, 2026
  2

• [unplugin] esbuild/Bun: hashed CSS file name does not change when only StyleX styles change

  facebook/stylex#1939 · Filter by author tivris opened on Oct 6, 2026
  1

• [unplugin] defineVars defaults missing with esbuild/Bun when the importer is TypeScript (treeshakeCompensation default)

  facebook/stylex#1938 · Filter by author tivris opened on Oct 6, 2026

• [unplugin] Bun.build with metafile: true writes no StyleX CSS (metafile outputs are relative to outdir)

  facebook/stylex#1936 · Filter by author tivris opened on Oct 6, 2026

• Option to enable pure function calls in dynamic defineVars calls.

  enhancement
  facebook/stylex#1929 · Filter by author tucsok007 opened on Oct 4, 2026
  1

• Option to give atomic classes their own prefix, separate from classNamePrefix

  facebook/stylex#1926 · Filter by author andrskr opened on Oct 3, 2026

• [Next.js/Turbopack][Windows] data-style-src path escaping causes hydration mismatch

  bug
  facebook/stylex#1924 · Filter by author lewisedc opened on Oct 1, 2026
  1

• [unplugin] Vite dev: CSS for a lazily loaded module is applied after the module has evaluated

  bug
  facebook/stylex#1919 · Filter by author tom-sherman opened on Sep 29, 2026
  3

• [unplugin] CSS-only change renames the CSS asset but not the chunk that references it

  facebook/stylex#1918 · Filter by author bjcgg opened on Sep 29, 2026

• Bun media query parser sometimes consumes EOF token as trailing syntax

  facebook/stylex#1916 · Filter by author schickling-assistant opened on Sep 29, 2026
  1

  

• [babel-plugin] firstThatWorks('var(--z)', 100) throws varName.startsWith is not a function

  facebook/stylex#1915 · Filter by author Om-singhaI opened on Sep 29, 2026

• [unplugin] Vite dev on Windows: runtime/CSS URLs built with path.join reach the browser as "\\virtual:…" and never load

  facebook/stylex#1913 · Filter by author DION-CL opened on Sep 28, 2026

• [unplugin] Vite dev: import walk calls this.load() on dependencies (react), deadlocking the cold-start dependency optimizer

  facebook/stylex#1912 · Filter by author DION-CL opened on Sep 28, 2026
  1

• Support boolean evaluation for media features like @media (prefers-reduced-motion)

  enhancement
  facebook/stylex#1909 · Filter by author chbybnwr opened on Sep 26, 2026
  1

  

• Transformed media queries leave gaps between breakpoints

  enhancement
  facebook/stylex#1908 · Filter by author chbybnwr opened on Sep 25, 2026
  1

• atProperty

  enhancement
  facebook/stylex#1900 · Filter by author chbybnwr opened on Sep 21, 2026

• @stylexjs/eslint-plugin More options for propLimits

  enhancement
  facebook/stylex#1893 · Filter by author ysulyma opened on Sep 17, 2026

• Vite CSS filename does not change after a StyleX-only edit with cssCodeSplit: false

  facebook/stylex#1889 · Filter by author skovhus opened on Sep 15, 2026

• Support CSS page bindings for named print pages

  facebook/stylex#1861 · Filter by author MattJDavidson opened on Sep 8, 2026
  1

  

• Mixed responsive/print property values emit a non-matching nested media-type condition

  facebook/stylex#1860 · Filter by author MattJDavidson opened on Sep 8, 2026

• Strict media range loses its excluded boundary in StyleX unplugin/Vite production CSS

  facebook/stylex#1859 · Filter by author MattJDavidson opened on Sep 8, 2026

• @stylexjs/unplugin Vite shared-store timer survives Vitest shutdown without httpServer

  facebook/stylex#1857 · Filter by author MattJDavidson opened on Sep 8, 2026
  1