Fix test "should handle empty documents"

Author: neuroevolutus

server/src/server.ts

@@ -278,6 +278,8 @@ export function validateScrapScript(
 ): Diagnostic[] {
   const diagnostics: Diagnostic[] = [];
 
+  if (text === "") return diagnostics;
+
   try {
     const tree = parse(text);
     const rootNode = tree.rootNode;