wifi timeouts, small changes for sd card access

web/script.js

@@ -57,6 +57,8 @@ setInterval(updateProgress, 500); // Update progress every second
     var timeoutMs;
     if ((this.__url || '').indexOf('/upload') !== -1) {
       timeoutMs = 600000; // 10 minutes for uploads
+    } else if ((this.__url || '').indexOf('/directory') !== -1) {
+      timeoutMs = 30000; // 30 seconds for directory listing (can be large)
     } else if (this.__method === 'GET') {
       timeoutMs = 6000;
     } else {
@@ -497,4 +499,3 @@ function deleteFileOnServer() {
   };
   xhr.send();
 }
-