From 41a7c9ccfbc1a7bc60aec672056eac3966ddd036 Mon Sep 17 00:00:00 2001
From: Alec Larson <1925840+aleclarson@users.noreply.github.com>
Date: Sat, 13 Nov 2021 14:26:42 -0500
Subject: [PATCH] fix(plugin-react): uncompiled JSX in linked pkgs (#5669)

---
 packages/plugin-react/src/index.ts | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/packages/plugin-react/src/index.ts b/packages/plugin-react/src/index.ts
index 316149c8452287..134df5fcb1db57 100644
--- a/packages/plugin-react/src/index.ts
+++ b/packages/plugin-react/src/index.ts
@@ -134,11 +134,12 @@ export default function viteReact(opts: Options = {}): PluginOption[] {
             // By reverse-compiling "React.createElement" calls into JSX,
             // React elements provided by dependencies will also use the
             // automatic runtime!
-            const [restoredAst, isCommonJS] = !isProjectFile
-              ? await restoreJSX(babel, code, id)
-              : [null, false]
+            const [restoredAst, isCommonJS] =
+              !isProjectFile && !isJSX
+                ? await restoreJSX(babel, code, id)
+                : [null, false]
 
-            if (isProjectFile || (ast = restoredAst)) {
+            if (isJSX || (ast = restoredAst)) {
               plugins.push([
                 await loadPlugin(
                   '@babel/plugin-transform-react-jsx' +