diff --git a/packages/next/build/webpack/loaders/next-middleware-ssr-loader/render.ts b/packages/next/build/webpack/loaders/next-middleware-ssr-loader/render.ts
index 341334e3d4d5..e186b66087d2 100644
--- a/packages/next/build/webpack/loaders/next-middleware-ssr-loader/render.ts
+++ b/packages/next/build/webpack/loaders/next-middleware-ssr-loader/render.ts
@@ -54,6 +54,7 @@ export function getRender({
   }
 
   const server = new WebServer({
+    dev,
     conf: config,
     minimalMode: true,
     webServerConfig: {
diff --git a/packages/next/server/load-components.ts b/packages/next/server/load-components.ts
index 3b03250be45d..7f44ccac93f1 100644
--- a/packages/next/server/load-components.ts
+++ b/packages/next/server/load-components.ts
@@ -111,11 +111,19 @@ export async function loadComponents(
   }
 
   const [DocumentMod, AppMod, ComponentMod, AppServerMod] = await Promise.all([
-    requirePage('/_document', distDir, serverless, rootEnabled),
-    requirePage('/_app', distDir, serverless, rootEnabled),
-    requirePage(pathname, distDir, serverless, rootEnabled),
+    Promise.resolve().then(() =>
+      requirePage('/_document', distDir, serverless, rootEnabled)
+    ),
+    Promise.resolve().then(() =>
+      requirePage('/_app', distDir, serverless, rootEnabled)
+    ),
+    Promise.resolve().then(() =>
+      requirePage(pathname, distDir, serverless, rootEnabled)
+    ),
     serverComponents
-      ? requirePage('/_app.server', distDir, serverless, rootEnabled)
+      ? Promise.resolve().then(() =>
+          requirePage('/_app.server', distDir, serverless, rootEnabled)
+        )
       : null,
   ])
 
diff --git a/packages/next/server/next-server.ts b/packages/next/server/next-server.ts
index 47764d6a06cb..3ce99c042e62 100644
--- a/packages/next/server/next-server.ts
+++ b/packages/next/server/next-server.ts
@@ -126,7 +126,7 @@ export default class NextNodeServer extends BaseServer {
       )
     }
 
-    if (!this.renderOpts.dev) {
+    if (!options.dev) {
       // pre-warm _document and _app as these will be
       // needed for most requests
       loadComponents(this.distDir, '/_document', this._isLikeServerless).catch(