fix

src/client/app/index.ts

@@ -138,7 +138,9 @@ function newRouter(): Router {
           // in prod this is handled in src/client/app/utils.ts#pathToFile
           const url = new URL(pageFilePath!, 'http://a.com')
           const path =
-            (url.pathname.endsWith('/index.md')
+            // vite-ignore is added here because of https://github.com/rolldown/rolldown/issues/8248
+            // remove once fixed upstream
+            /*@vite-ignore*/ (url.pathname.endsWith('/index.md')
               ? url.pathname.slice(0, -9) + '.md'
               : url.pathname.slice(0, -3) + '/index.md') +
             url.search +

src/node/plugins/webFontsPlugin.ts

@@ -7,8 +7,9 @@ export const webFontsPlugin = (enabled = false): Plugin => ({
   name: 'vitepress:webfonts',
   enforce: 'pre',
 
-  transform(code, id) {
-    if (/[\\/]fonts\.s?css/.test(id)) {
+  transform: {
+    filter: { id: /\/fonts\.s?css(?:$|\?)/ },
+    handler(code) {
       if (enabled) {
         return code.match(webfontMarkerRE)?.[1]
       } else {