fix: broken build when renderModernChunks=false & polyfills=false

CyanSalt · Sep 27, 2023 · f32154f · f32154f
1 parent d0813b1
commit f32154f
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/index.ts b/src/index.ts
@@ -266,15 +266,17 @@ function viteLegacyPlugin(options: Options = {}): Plugin[] {
       }
 
       // legacy bundle
-      if (legacyPolyfills.size) {
+      if (options.polyfills !== false) {
         // check if the target needs Promise polyfill because SystemJS relies on it
         // https://github.com/systemjs/systemjs#ie11-support
         await detectPolyfills(
           `Promise.resolve(); Promise.all();`,
           targets,
           legacyPolyfills,
         )
+      }
 
+      if (legacyPolyfills.size || !options.externalSystemJS) {
         if (isDebug) {
           console.log(
             `[vite-plugin-legacy-swc] legacy polyfills:`,