From 69d98f0f0c1da19ef7cb85f8eca82f8d313a3bef Mon Sep 17 00:00:00 2001
From: Brett Saviano <bsaviano@intersystems.com>
Date: Mon, 21 Apr 2025 07:30:37 -0400
Subject: [PATCH] Show error message when a server-side file fails to open

---
 src/providers/FileSystemProvider/FileSystemProvider.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/providers/FileSystemProvider/FileSystemProvider.ts b/src/providers/FileSystemProvider/FileSystemProvider.ts
index acef2e1e..de1840d4 100644
--- a/src/providers/FileSystemProvider/FileSystemProvider.ts
+++ b/src/providers/FileSystemProvider/FileSystemProvider.ts
@@ -960,7 +960,9 @@ export class FileSystemProvider implements vscode.FileSystemProvider {
       )
       .catch((error) => {
         if (error?.statusCode == 304 && cachedFile) return cachedFile;
-        throw vscode.FileSystemError.FileNotFound(stringifyError(error) || uri);
+        const errArg = stringifyError(error) || uri;
+        if (error?.statusCode == 404) throw vscode.FileSystemError.FileNotFound(errArg);
+        throw vscode.FileSystemError.Unavailable(errArg);
       });
   }