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shankar0123
7268d12a17
Closes frontend-design-audit finding FE-M6 (Med):
CSP allows 'unsafe-inline' for `style-src` — necessary today
because of inline SVG `style=` attrs (related to FE-H2)
═══════════════════════════ GROUND-TRUTH FINDINGS ═══════════════════
Ground-truth recon found 4 audit-framing errors:
(1) The "17 inline-style tsx files" count was stale — actual is 9
(8 after excluding a Layout.tsx comment match the audit's grep
counted).
(2) The CSP rationale comment at securityheaders.go:35 LIED about
WHY 'unsafe-inline' is needed. It claimed "Tailwind (via Vite)
injects per-component <style> blocks at build time." Verified
against the post-build artifact: `grep -c '<style' dist/index.html`
= 0; Vite's CSS output is a single .css file linked via
`<link rel="stylesheet">`. The 'unsafe-inline' grant exists for
React's `style={...}` attribute model, NOT for Vite or Tailwind.
(3) The 9 sites split cleanly into:
LOAD-BEARING DYNAMIC (5 sites; can't be Tailwind utilities
because values are computed at runtime):
- Tooltip.tsx Floating-UI position (left/top px per-tick)
- AgentFleetPage.tsx dynamic color+width chart bars
- dashboard/charts.tsx Recharts color props
- CertificatesPage.tsx progress-bar percent width
- IssuerHierarchyPage.tsx depth-based marginLeft
STATIC PIXEL VALUES (3 files, ~12 sites; clean Tailwind
migration targets):
- UsersPage.tsx — filter UI + table styling
- DigestPage.tsx — iframe min-height
- AuthProvider.tsx — demo-mode banner
(4) Fully eliminating 'unsafe-inline' would require either banning
dynamic `style={...}` (CSS-in-JS rewrite of the 5 load-bearing
sites) or adopting CSP nonces with React 18+'s style runtime.
Neither fits the original FE-M6 phase budget.
═══════════════════════════ CHANGES ═══════════════════════════════
web/src/pages/auth/UsersPage.tsx:
9 inline-style attrs → Tailwind utility classes. The filter UI
(mb-4, mr-2, w-[280px] p-1), the table (w-full border-collapse),
the thead row (border-b-2 border-gray-300 text-left), per-row
borders (border-b border-gray-200 + opacity-50/100 conditional),
buttons (px-3 py-1), the empty-state cell (p-3 text-center).
Behavior-preserving.
web/src/pages/DigestPage.tsx:
iframe `style={{ minHeight: '600px' }}` → className "min-h-[600px]"
(composed into the existing className).
web/src/components/AuthProvider.tsx:
Demo-mode banner: 6-prop `style={{ background, color, padding,
fontSize, fontWeight, textAlign }}` → className "bg-red-700
text-white px-4 py-2 text-[13px] font-semibold text-center".
Same visual.
internal/api/middleware/securityheaders.go:
CSP rationale comment rewritten to accurately describe WHY
'unsafe-inline' is required. New comment:
- Names the 5 load-bearing dynamic-style sites explicitly
- Lists the 3 static sites that were migrated to Tailwind today
- Documents that the OLD comment's "Tailwind/Vite injects
<style> blocks" claim was factually wrong (verified against
built dist/index.html — zero <style> tags emitted)
- Records the future-tightening path (React style-runtime
nonces OR CSS-in-JS rewrite of the 5 sites) and notes it
doesn't fit the original FE-M6 phase budget
═══════════════════════════ AUDIT FRAMING ════════════════════════
The audit said FE-M6 was about "inline SVG style= attrs (related
to FE-H2)." Ground-truth: FE-H2 (Phase 3 Layout SVG → Lucide
icons) ALREADY happened; the remaining inline-style sites have
nothing to do with SVGs. The audit's bridge from FE-H2 → FE-M6
was a red herring.
The OPERATOR-VISIBLE win from this closure:
• 3 production tsx files now use Tailwind utility classes for
static styling — consistent with the rest of the codebase.
• The CSP comment now tells the truth about why 'unsafe-inline'
is needed, so the next operator who reads it doesn't waste
time hunting for non-existent <style> blocks.
• The inline-style attribute surface is reduced to ONLY
load-bearing dynamic styling — making any future tightening
work (nonces, CSS-in-JS migration) easier to scope.
The CSP header itself is UNCHANGED ("style-src 'self'
'unsafe-inline'"). True elimination of 'unsafe-inline' is a
separate workstream tracked in the corrected comment.
═══════════════════════════ VERIFICATION ═══════════════════════════
• gofmt -l internal/api/middleware/securityheaders.go — clean
• go vet ./internal/api/middleware/... — exit 0
• go test -short -count=1 ./internal/api/middleware/... —
ok 0.247s (existing securityheaders_test.go pins the
Content-Security-Policy header value byte-string; unchanged
by this commit so test stays green)
• npx tsc --noEmit — exit 0
• npx vitest run AuthProvider DigestPage UsersPage — 16/16 pass
• npx vite build — built in 3.42s
Ground-truth: origin/master tip 9ba5ee4 (P-M2 just pushed)
verified via GitHub API BEFORE commit.
Falsifiable proof: a future engineer reading securityheaders.go:35
sees an accurate explanation of why 'unsafe-inline' is needed,
NOT the previous false "Tailwind/Vite" claim.