Focus while upload.

src/snek/templates/web.html

@@ -246,7 +246,7 @@
        if (event.key === 'Escape') {
             escPressed = true;
             gPressCount = 0; 
-            clearTimeout(timeout);
+            clearTimeout(keyTimeout);
             keyTimeout = setTimeout(() => {
                 escPressed = false; 
             }, 300);