fix(v2): BrowserOnly should not return undefined (#3149)

facebook · Jul 28, 2020 · d28a29f · d28a29f
1 parent eeb5c93
commit d28a29f
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/packages/docusaurus/src/client/exports/BrowserOnly.tsx b/packages/docusaurus/src/client/exports/BrowserOnly.tsx
@@ -14,9 +14,9 @@ function BrowserOnly({
 }: {
  children?: () => JSX.Element;
  fallback?: JSX.Element;
-}): JSX.Element | undefined {
+}): JSX.Element | null {
  if (!ExecutionEnvironment.canUseDOM || children == null) {
- return fallback || undefined;
+ return fallback || null;
  }
 
  return <>{children()}</>;