Fix Next.js Hydration Error: Expected server HTML to contain a matching tag (2025 Guide)
Fix Next.js Hydration Error: Expected server HTML to contain a matching tag (2025 Guide) Fix Next.js Hydration Error: Expected server HTML to contain a matching tag (2025 Guide) Posted on: April 19, 2025 Encountered a "Hydration Error: Expected server HTML to contain a matching tag" in Next.js? This error occurs when the server-rendered HTML doesn’t match the client-rendered HTML during React’s hydration process. Let’s fix it fast in this 2025 guide! What Causes "Hydration Error: Expected server HTML to contain a matching tag"? This error happens due to mismatches between server-side rendering (SSR) and client-side rendering in Next.js. Common causes include: Client-Side Logic in SSR : Using browser-specific logic (like `window` or `useEffect`) during server rendering. Conditional Render...