From 83bb1bb8df36957f3aba3de2fc2dd8b0df01e7ea Mon Sep 17 00:00:00 2001
From: underfin <likui.underfin@gmail.com>
Date: Thu, 11 Jul 2024 11:09:45 +0800
Subject: [PATCH] chore: enable format iife

---
 packages/vite/src/node/build.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/packages/vite/src/node/build.ts b/packages/vite/src/node/build.ts
index 63f5169c2e6dd2..333a1921f76013 100644
--- a/packages/vite/src/node/build.ts
+++ b/packages/vite/src/node/build.ts
@@ -271,7 +271,7 @@ export interface LibraryOptions {
   fileName?: string | ((format: ModuleFormat, entryName: string) => string)
 }
 
-export type LibraryFormats = 'es' | 'cjs' /*| 'umd' | 'iife' | 'system'*/
+export type LibraryFormats = 'es' | 'cjs' | 'iife' /*| 'umd'  | 'system'*/
 
 export interface ModulePreloadOptions {
   /**
@@ -1162,7 +1162,7 @@ const relativeUrlMechanisms: Record<
     getResolveUrl(
       `'${escapeId(partialEncodeURIPath(relativePath))}', import.meta.url`,
     ),
-  // iife: (relativePath) => getRelativeUrlFromDocument(relativePath),
+  iife: (relativePath) => getRelativeUrlFromDocument(relativePath),
   // // NOTE: make sure rollup generate `module` params
   // system: (relativePath) =>
   //   getResolveUrl(
@@ -1234,7 +1234,7 @@ export function createToImportMetaURLBasedRelativeRuntime(
   format: InternalModuleFormat,
   isWorker: boolean,
 ): (filename: string, importer: string) => { runtime: string } {
-  const formatLong = /* isWorker && format === 'iife' ? 'worker-iife' : */ format
+  const formatLong = isWorker && format === 'iife' ? 'worker-iife' :  format
   const toRelativePath = customRelativeUrlMechanisms[formatLong]
   return (filename, importer) => ({
     runtime: toRelativePath(