BUG ? swipeback become blank page

Hi , I’m not sure it’s bug or not but after I put page.router.clearPreviousHistory(); on the 1st page then I go to the 2nd page then I swipe back It’s become blank page. but if I remove"page.router.clearPreviousHistory();" from the 1st page it’s working fine.
And also if I use link back It’s also fine.



var app = new Framework7({
// App root element
theme: ‘ios’,
root: ‘#app’,
// App Name
name: ‘My App’,
// App id
id: ‘com.myapp.test’,
// Enable swipe panel
panel: {
swipe: ‘left’,
// Add default routes
routes: [{
path: ‘/about/’,
url: ‘about.html’,
path: ‘/list/’,
url: ‘list.html’,
on: {
pageInit(e, page) {
path: ‘/view/’,
url: ‘view.html’,
// … other parameters
var mainView = app.views.create(’.view-main’);

for other page I just use

<div data-name="about" class="page">

  <!-- Top Navbar -->
  <div class="navbar">
      <div class="navbar-bg"></div>
      <div class="navbar-inner">
          <div class="left">
              <a href="#" class="link back">back</a>
          <div class="title">ABOUT</div>
          <div class="right">
              <a href="#" class="link">Right Link</a>

  <!-- Bottom Toolbar -->
  <div class="toolbar toolbar-bottom">
    <div class="toolbar-inner">
      <!-- Toolbar links -->
      <a href="#" class="link">Link 1</a>
      <a href="#" class="link">Link 2</a>

  <!-- Scrollable page content -->
  <div class="page-content">
    <p>Page content goes here</p>
    <!-- Link to another page -->
    <a href="/view/">link page</a>