fix: prevent empty path

Author: Vinzent03

packages/supabase_functions/lib/supabase_functions_shelf.dart

@@ -1,3 +1,4 @@
+import 'dart:async';
 import 'dart:js_util' as js_util;
 
 import 'package:edge_runtime/edge_runtime.dart';
@@ -19,6 +20,10 @@ class SupabaseFunctionsShelf {
   SupabaseFunctionsShelf({
     this.fetch,
   }) {
+    // runZonedGuarded(() {
+
+    // }, (error, stack) { });
+
     // Setup the runtime environment.
     setupRuntime();
 
@@ -37,6 +42,9 @@ class SupabaseFunctionsShelf {
           // Remove the first path segment, because it starts with `dart_edge/<actual-sub-path>`.
           var uri = Uri.parse(clone.url);
           uri = uri.replace(pathSegments: uri.pathSegments.skip(1));
+          if (uri.path.isEmpty) {
+            uri = uri.replace(path: "/");
+          }
 
           final shelfRequest = shelf.Request(
             clone.method,