真机运行在控制台就出现下面一大堆的东西，基本的功能还是能实现的，效果很慢

Deferred long-running timer task(s) to improve scrolling smoothness. See crbug.com/574343. at order.html:0
Deferred long-running timer task(s) to improve scrolling smoothness. See crbug.com/574343. at mine.html:0
Deferred long-running timer task(s) to improve scrolling smoothness. See crbug.com/574343. at allmenu.html#:0
Deferred long-running timer task(s) to improve scrolling smoothness. See crbug.com/574343. at examples/offcanvas.html:0
Deferred long-running timer task(s) to improve scrolling smoothness. See crbug.com/574343. at index.html:0
Deferred long-running timer task(s) to improve scrolling smoothness. See crbug.com/574343. at examples/option.html#:0
Deferred long-running timer task(s) to improve scrolling smoothness. See crbug.com/574343. at HomePage.html:0
正在同步/examples/option.html文件...