code cleanup

Author: lifeart

lib/middleware.ts

@@ -29,7 +29,7 @@ interface MiddlewareOptions {
 
 function findClosestIndexFileForPath(outputPath: string, prefix: string): string | undefined {
   const candidates = [];
-  const parts = prefix.slice(0).split('/');
+  const parts = prefix.split('/');
   while (parts.length) {
     parts.pop();
     candidates.push(resolvePath(outputPath, [...parts, 'index.html'].join(path.sep)));