fix query for getInitialProps is not parsed as an object

lib/router.js

@@ -26,7 +26,7 @@ export default class Router {
   onPopState (e) {
     this.abortComponentLoad()
 
-    const { pathname, query } = parse(window.location.href)
+    const { pathname, query } = parse(window.location.href, true)
     const route = (e.state || {}).route || toRoute(pathname)
 
     Promise.resolve()
@@ -66,7 +66,7 @@ export default class Router {
 
     if (route !== this.route) return
 
-    const { pathname, query } = parse(window.location.href)
+    const { pathname, query } = parse(window.location.href, true)
 
     let data
     let props