Fix bug in function serveResource()

It is necessary to use double-quotes in the Content-Disposition header.

1 files changed, 1 insertions, 1 deletions

diff --git a/app/df.php b/app/df.php
index 92dd9dd..3f648ad 100644
--- a/app/df.php
+++ b/app/df.php
@@ -43,7 +43,7 @@ function serveResource(string $uri, ?string $filename = NULL) : void
     header("Content-Length: " . filesize($uri));
 
     if ($filename)
-        header("Content-Disposition: attachment; filename='" . $filename . "'");
+        header("Content-Disposition: attachment; filename=\"" . $filename . "\"");
 
     fpassthru($f);
     fclose($f);