Release Notes
Improvement Logs On Chaincrib Platform
1) SEO: Missing Meta Description
Problem
Lighthouse flagged: “Document does not have a meta description.”
Impact: Lower SEO clarity and poorer SERP snippet quality.
Root Cause
The document's head lacked a meta description.
Fix Implemented
Added a concise, descriptive meta description to the document head that reflects the app’s purpose and key actions for users.
Result
Lighthouse SEO audit passes for meta description.
Improved search snippet relevance.
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2) Accessibility: Links Without Discernible Names
Problem
Lighthouse/axe reported: “Links do not have a discernible name.”
Impact: Screen readers and assistive technologies cannot interpret link purpose, harming accessibility and usability.
Root Cause
Logo-only navigation links wrapped in Link components lacked text alternatives or ARIA labels.
Fix Implemented
Added clear aria-label attributes to logo-only links on sign-in, sign-up, and verify-email pages so each link exposes an accessible name (e.g., “ChainCrib home” or “Go to sign in”).
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3) Performance: First Contentful Paint (FCP), Largest Contentful Paint (LCP), Speed Index
Problems
Slower FCP/LCP/Speed Index caused by larger initial JS and render-blocking resources.
Root Causes
All routes are loaded eagerly on initial render.
External resources (fonts, third-party SDKs) impacted initial load.
Fixes Implemented
Route-based code splitting: Converted all page routes to lazy-loaded components with Suspense, reducing the initial JS bundle and allowing the browser to paint faster.
Deferred third-party SDK initialization: Moved wallet/SSO initialization to occur upon user interaction rather than page load, reducing main-thread work at TTI/FCP.
Fonts optimizations: Preconnected to Google Fonts and enabled non-blocking font loading behaviors; reduced weights in use to minimize CSS block time.
Caching: Added long-lived cache headers for static assets to accelerate repeat visits.
Results
Lower initial JS cost and decreased blocking work at startup help improve FCP and Speed Index.
Reduced third-party initialization cost before first paint.
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4) Best Practices: Content Security Policy (CSP) and Third-Party Cookies
Problems
The Issues panel flagged third-party cookies usage and CSP violations.
CSP blocked initially required resources (e.g., fonts and API requests) and raised eval warnings.
Root Causes
CSP was set in a meta tag rather than via headers; not all origins required by the app were allowed.
Some dependencies (including WASM/crypto flows) rely on eval-like behavior.
Missing allowed origin for the backend API, resulting in requests being blocked.
Third-party integrations are initialized on page load.
Fixes Implemented
Moved CSP to HTTP response headers and iteratively refined directives:
Allowed required origins for frames, fonts, styles, and API connections (Google Fonts, wallet/SSO endpoints, app backend).
Added allowances for WebAssembly evaluation where necessary, balancing them with scoped or temporary relaxations.
Deferred third-party SDK initialization until user interaction to reduce third-party cookie usage on initial load and lower the risk surface.
Added report-ready guidance to narrow relaxations in production once the exact dependency is identified (optionally via report-only CSP).
Results
CSP is now enforced via headers, aligned with current integrations and endpoints.
Third-party cookie usage is reduced on initial load; CSP warnings are minimized while maintaining functionality.
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