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Most modal implementations break the browser's back button and lose state on refresh. Next.js intercepting routes solve both problems through file-system conventions that map URLs to overlays.

Most Next.js middleware failures in production stem from misunderstanding the Edge Runtime's constraints. Learn the patterns that separate resilient middleware from brittle implementations that break under load.

Most dashboard layout problems stem from forcing sequential rendering when parallel composition is needed. Learn how Next.js parallel routes solve complex layout patterns that break with traditional approaches.