feats

src/components/Page/index.jsx

   const title = props.title || meta.title;
 
   const backParam = searchParams.get('back')
-  const isBack = back || new Boolean(backParam === 'false' ? 0 : backParam);
+  const isBack = back || new Boolean(backParam === 'false' ? 0 : backParam).valueOf();
 
   return (
     <div style={style}>