Merge pull request #28863 from storybookjs/valentin/fix-missing-sourc…

…e-map-warning

Builder-Vite: Add null character prefix to virtual file IDs

code/builders/builder-vite/src/plugins/code-generator-plugin.ts

@@ -70,33 +70,33 @@ export function codeGeneratorPlugin(options: Options): Plugin {
  },
  resolveId(source) {
  if (source === virtualFileId) {
- return virtualFileId;
+ return `\0${virtualFileId}`;
  }
  if (source === iframePath) {
  return iframeId;
  }
  if (source === virtualStoriesFile) {
- return virtualStoriesFile;
+ return `\0${virtualStoriesFile}`;
  }
  if (source === virtualPreviewFile) {
  return virtualPreviewFile;
  }
  if (source === virtualAddonSetupFile) {
- return virtualAddonSetupFile;
+ return `\0${virtualAddonSetupFile}`;
  }
 
  return undefined;
  },
  async load(id, config) {
- if (id === virtualStoriesFile) {
+ if (id === `\0${virtualStoriesFile}`) {
  return generateImportFnScriptCode(options);
  }
 
- if (id === virtualAddonSetupFile) {
+ if (id === `\0${virtualAddonSetupFile}`) {
  return generateAddonSetupCode();
  }
 
- if (id === virtualFileId) {
+ if (id === `\0${virtualFileId}`) {
  return generateModernIframeScriptCode(options, projectRoot);
  }