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feat: ALLOWED_DEV_ORIGINS env for cross-origin dev mode #6

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feat: ALLOWED_DEV_ORIGINS env for cross-origin dev mode #6

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12 changes: 12 additions & 0 deletions frontend/next.config.ts
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Original file line number Diff line number Diff line change
@@ -1,6 +1,18 @@
import type { NextConfig } from "next";

// Hosts allowed to load /_next/* dev resources from this dev server.
// Next.js 16 blocks cross-origin dev requests by default; without this,
// running `next dev` behind any reverse proxy or non-localhost origin
// silently breaks HMR and React hydration.
// Set ALLOWED_DEV_ORIGINS as a comma-separated list, e.g.
// ALLOWED_DEV_ORIGINS=bigset.example.com,staging.example.com
const allowedDevOrigins = (process.env.ALLOWED_DEV_ORIGINS || "")
.split(",")
.map((s) => s.trim())
.filter(Boolean);

const nextConfig: NextConfig = {
allowedDevOrigins,
async rewrites() {
return [
{
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