Merge pull request #26838 from rChaoz/patch-1

Svelte: Fix Vite crashing on virtual module imports

Author: JReinhold

code/frameworks/svelte-vite/src/plugins/svelte-docgen.ts

@@ -146,7 +146,7 @@ export async function svelteDocgen(svelteOptions: Record<string, any> = {}): Pro
   return {
     name: 'storybook:svelte-docgen-plugin',
     async transform(src: string, id: string) {
-      if (!filter(id)) {
+      if (id.startsWith('\0') || !filter(id)) {
         return undefined;
       }
 
@@ -189,7 +189,13 @@ export async function svelteDocgen(svelteOptions: Record<string, any> = {}): Pro
 
         let docOptions;
         if (docPreprocessOptions) {
-          const rawSource = readFileSync(resource).toString();
+          let rawSource;
+          try {
+            rawSource = readFileSync(resource).toString();
+          } catch (_) {
+            // ignore/skip modules that can't be loaded, possibly virtual module
+            return undefined;
+          }
           const { code: fileContent } = await preprocess(rawSource, docPreprocessOptions, {
             filename: resource,
           });