Fixing encoding a bit for space.

inventory/static/js/components/draw.js

@@ -1098,7 +1098,7 @@ function initGridWidget(root, opts = {}) {
             cellSize: cellSize,
             shapes: stripCaches(shapes)
         };
-        const blob = new Blob([JSON.stringify(payload, null, 2)], { type: 'application/json' });
+        const blob = new Blob([JSON.stringify(payload)], { type: 'application/json' });
         const url = URL.createObjectURL(blob);
         const a = document.createElement('a');
         a.href = url;