title: How to stay at current position of page after SPF.js navigates to new URL
body: <p>By the way, sorry for my English. Please edit for me :)</p>
  
  <p>I'm using <a href="https://youtube.github.io/spfjs/" rel="nofollow noreferrer">https://youtube.github.io/spfjs/</a> for fast navigation like one page application. But when SPF.js call <code>spf.navigate(url)</code> I get redirected to another page.</p>
  
  <p>For sample when I scroll down my website a bit, click <code>&lt;a class="spf-link" href="http://example.com/nextpage"&gt;</code> next page is loading normally without refresh, but scroll Y position is not saving and I'm getting to the top. That really annoys users when they just want to stay at the current scrolling.</p>
  
  <p>Is there any configurable state or position when<code>spf.navigate()</code> is called by SPF.js? or I have to do some trick to do it.</p>