chore: migrate middleware.ts to proxy.ts for Next.js 16#30
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itinsecurity merged 1 commit intomainfrom Mar 19, 2026
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Next.js 16 deprecates middleware.ts in favor of proxy.ts, which runs on the Node.js runtime instead of Edge. Auth.js v5's auth() wrapper uses Web-standard APIs (Request/Response/Headers) and works identically on both runtimes. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
src/middleware.ts→src/proxy.tsper Next.js 16 deprecationproxy.tsruns on Node.js runtime (instead of Edge), which is an upgrade for Auth.js — full access toprocess.env, crypto, and database connectionsauth()wrapper uses Web-standard APIs and works identically on both runtimesInvestigation
A 4-agent team audit verified:
force-dynamicexports: Must stay — Auth.jsauth()unconditionally callsheaders(), forcing dynamic renderingparams,searchParams,auth()already properly awaitednext.config.ts,eslint.config.mjs,tsconfig.jsonall Next.js 16 compliantTest plan
🤖 Generated with Claude Code