fix(critical CSS): use the assetPrefix in the critters config (vercel#27506)

noreiller · web-flow · commit 97a140f7339d · 2021-07-26T21:00:47.000Z
This PR fixes vercel#25927 bug which prevents to use `assetPrefix` config with the experimental critical CSS feature. Fixes: vercel#25927 ## Bug - [x] Related issues linked using `fixes #number` - [ ] Integration tests added - [ ] Errors have helpful link attached, see `contributing.md`
diff --git a/packages/next/server/render.tsx b/packages/next/server/render.tsx
@@ -1146,7 +1146,7 @@ export async function renderToHTML(
       ssrMode: true,
       reduceInlineStyles: false,
       path: renderOpts.distDir,
-      publicPath: '/_next/',
+      publicPath: `${renderOpts.assetPrefix}/_next/`,
       preload: 'media',
       fonts: false,
       ...renderOpts.optimizeCss,
