Engineering
React Flow Security: Sanitizing User-Generated Node and Edge Content
Prevent XSS when labels, descriptions, or embedded HTML come from untrusted tenants in multi-user builders.
2025-04-108 min readReact Flow, Security, XSS
Treat all user strings as untrusted. Prefer plain text in SVG text elements or sanitize with a strict allowlist if you must render rich text. Content Security Policy headers add defense in depth.
Want this in production today?
Get the matching template on VisualFlow.
Related articles
Engineering
Testing React Flow Apps with Playwright and Component Tests
Stable selectors, waiting for canvas readiness, and mocking viewport transforms for CI-friendly end-to-end tests.
Engineering
React Flow SSR, Prerender, and Hydration Caveats in Full-Stack Apps
What to render on the server, how to avoid window mismatches, and patterns for static marketing previews of graphs.