Merge pull request #18105 from storybookjs/reactDomVersion-undefined-bug

React: Fix version detection for older versions of `react-dom`
storybookjs · Apr 30, 2022 · ea65ace · ea65ace
2 parents 53f5fe8 + 259c2d3
commit ea65ace
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/app/react/src/client/preview/render.tsx b/app/react/src/client/preview/render.tsx
@@ -48,7 +48,7 @@ const renderElement = async (node: ReactElement, el: Element) => {
 };
 
 const canUseNewReactRootApi =
-  reactDomVersion.startsWith('18') || reactDomVersion.startsWith('0.0.0');
+  reactDomVersion && (reactDomVersion.startsWith('18') || reactDomVersion.startsWith('0.0.0'));
 
 const shouldUseNewRootApi = FRAMEWORK_OPTIONS?.legacyRootApi !== true;