fix search index out of bounds error (#548)

Co-authored-by: spencerwooo <spencer.woo@outlook.com>

Author: naicfeng

components/SearchModal.tsx

@@ -27,13 +27,15 @@ import siteConfig from '../config/site.config'
 function mapAbsolutePath(path: string): string {
   // path is in the format of '/drive/root:/path/to/file', if baseDirectory is '/' then we split on 'root:',
   // otherwise we split on the user defined 'baseDirectory'
-  const absolutePath = path.split(siteConfig.baseDirectory === '/' ? 'root:' : siteConfig.baseDirectory)[1]
+  const absolutePath = path.split(siteConfig.baseDirectory === '/' ? 'root:' : siteConfig.baseDirectory)
   // path returned by the API may contain #, by doing a decodeURIComponent and then encodeURIComponent we can
   // replace URL sensitive characters such as the # with %23
-  return absolutePath
-    .split('/')
-    .map(p => encodeURIComponent(decodeURIComponent(p)))
-    .join('/')
+  return absolutePath.length > 1 // solve https://github.com/spencerwooo/onedrive-vercel-index/issues/539
+    ? absolutePath[1]
+        .split('/')
+        .map(p => encodeURIComponent(decodeURIComponent(p)))
+        .join('/')
+    : ''
 }
 
 /**