Fix prerendering when using a custom server (#12759)

Author: brophdawg11

.changeset/twenty-llamas-lick.md

@@ -0,0 +1,5 @@
+---
+"@react-router/dev": patch
+---
+
+Fix prerendering when using a custom server - previously we ended up trying to import the users custom server when we actually want to import the virtual server build module

packages/react-router-dev/vite/plugin.ts

@@ -1203,6 +1203,7 @@ export const reactRouterVitePlugin: ReactRouterVitePlugin = () => {
               viteConfig,
               ctx.reactRouterConfig,
               serverBuildDirectory,
+              ssrViteManifest[virtual.serverBuild.id].file,
               clientBuildDirectory
             );
           }
@@ -1213,6 +1214,7 @@ export const reactRouterVitePlugin: ReactRouterVitePlugin = () => {
               viteConfig,
               ctx.reactRouterConfig,
               serverBuildDirectory,
+              ssrViteManifest[virtual.serverBuild.id].file,
               clientBuildDirectory
             );
           }
@@ -1774,13 +1776,10 @@ async function getRouteMetadata(
 
 async function getPrerenderBuildAndHandler(
   viteConfig: Vite.ResolvedConfig,
-  reactRouterConfig: ResolvedReactRouterConfig,
-  serverBuildDirectory: string
+  serverBuildDirectory: string,
+  serverBuildFile: string
 ) {
-  let serverBuildPath = path.join(
-    serverBuildDirectory,
-    reactRouterConfig.serverBuildFile
-  );
+  let serverBuildPath = path.join(serverBuildDirectory, serverBuildFile);
   let build = await import(url.pathToFileURL(serverBuildPath).toString());
   let { createRequestHandler: createHandler } = await import("react-router");
   return {
@@ -1793,12 +1792,13 @@ async function handleSpaMode(
   viteConfig: Vite.ResolvedConfig,
   reactRouterConfig: ResolvedReactRouterConfig,
   serverBuildDirectory: string,
+  serverBuildFile: string,
   clientBuildDirectory: string
 ) {
   let { handler } = await getPrerenderBuildAndHandler(
     viteConfig,
-    reactRouterConfig,
-    serverBuildDirectory
+    serverBuildDirectory,
+    serverBuildFile
   );
   let request = new Request(`http://localhost${reactRouterConfig.basename}`);
   let response = await handler(request);
@@ -1821,12 +1821,13 @@ async function handlePrerender(
   viteConfig: Vite.ResolvedConfig,
   reactRouterConfig: ResolvedReactRouterConfig,
   serverBuildDirectory: string,
+  serverBuildPath: string,
   clientBuildDirectory: string
 ) {
   let { build, handler } = await getPrerenderBuildAndHandler(
     viteConfig,
-    reactRouterConfig,
-    serverBuildDirectory
+    serverBuildDirectory,
+    serverBuildPath
   );
 
   let routes = createPrerenderRoutes(build.routes);