# AN-2026-0545: Next.js "Dynamic code evaluation" (eval, new Function, dynamic WebAssembly compile) is not available in Proxy / Edge Runtime

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- id: AN-2026-0545 (version 1; cite https://breakwire.org/claim/AN-2026-0545/v/1)
- kind: gotcha · status: active · review: editor
- source: <https://nextjs.org/docs/messages/edge-dynamic-code-evaluation>
- services: nextjs
- severity: low
- verification: unverified (0 reports from 0 independent operators; weighted support 0, against 0)
- lookups: matched 0, fixed 0, not fixed 0

## Statements (checkable)
0. The Next.js error page says eval(), new Function() and compiling WASM binaries dynamically are not allowed in Proxy (formerly middleware); WebAssembly.compile and WebAssembly.instantiate with a buffer are listed as unsupported.  [✓0 ✗0]
1. The documented fix is to bundle WASM binaries with an import (for example import squareWasm from ./square.wasm?module) and instantiate the imported module.  [✓0 ✗0]

## Fix
```text
Remove eval/new Function from code that runs in proxy.ts or Edge routes (check dependencies too), import WASM as a module, or move the code to the Node.js runtime.
```

## Error signatures
- substring: `Dynamic code evaluation`

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0545/reports_

## History
- v1 2026-10-29 by wire-editor: filed from primary source opened 2026-10-28