try toPosix

Author: Hajime-san

packages/fresh/src/internals_dev.ts

@@ -8,6 +8,7 @@ export {
   type PendingStaticFile,
   prepareStaticFile,
   writeCompiledEntry,
+  toPosix
 } from "./dev/dev_build_cache.ts";
 export { specToName } from "./dev/builder.ts";
 export { pathToSpec, UniqueNamer } from "./utils.ts";

packages/plugin-vite/src/plugins/server_snapshot.ts

@@ -13,6 +13,7 @@ import {
   pathToSpec,
   type PendingStaticFile,
   specToName,
+  toPosix,
   UniqueNamer,
 } from "fresh/internal-dev";
 import {
@@ -160,7 +161,7 @@ export function serverSnapshot(options: ResolvedFreshViteConfig): Plugin[] {
             const route = result.routes[i];
             const name = routeNamer.getUniqueName(route.id);
 
-            routeFileToName.set(route.filePath, name);
+            routeFileToName.set(toPosix(path.normalize(route.filePath)), name);
             routes.set(name, route);
           }
 
@@ -390,7 +391,9 @@ export function serverSnapshot(options: ResolvedFreshViteConfig): Plugin[] {
               if (def) {
                 return `fresh-island::${def.name}`;
               }
-              const routeDef = routeFileToName.get(file);
+              const routeDef = routeFileToName.get(
+                toPosix(path.normalize(file)),
+              );
               if (routeDef !== undefined) {
                 return `fresh-route::${routeDef}`;
               }
@@ -418,7 +421,7 @@ export function serverSnapshot(options: ResolvedFreshViteConfig): Plugin[] {
             let item: EnvironmentModuleNode | undefined;
             while ((item = queue.pop()) !== undefined) {
               if (item.file !== null) {
-                const normalized = path.normalize(item.file);
+                const normalized = toPosix(path.normalize(item.file));
                 const name = routeFileToName.get(normalized);
 
                 if (name !== undefined) {