Back button not working with video

Hello, I’m developping an app with Ionic, and I have to display some video in playlist (I hoste them), so no Youtube player.
I use videoJS with plugin “videoJSPlaylist” : when a vdeo is finished, the next one play aotomatically, and I made “next” and “back” button to navigate in the playlist.

I had to remove the to make it work, otherwise it was not working. I have an issue on IOS where the back button is not working in the navbar. On the Chrome emulator and real android phone, the issue does not exist.
Maybe someone has a hint?

index.html :

    <ion-pane ion-side-menu-content drag-content="main.dragContent">        
        <ion-nav-bar back-button-type="button-icon" back-button-icon="ion-ios7-arrow-back"animation="nav-title-slide-ios7">
            <ion-nav-back-button class="button-icon ion-arrow-left-c"></ion-nav-back-button>

        <ion-nav-view animation="slide-left-right-ios7"></ion-nav-view>

    <ion-side-menu side="left" is-enabled="isLeftMenuEnabled"> 


My html with video :

<ion-view title={{title}} hide-back-button="false" id="sequence">

    <div class="wrapper">
        <div class="videocontent">
            <video  id="video" class="video-js vjs-default-skin vjs-playing vjs-fullscreen" preload="auto"  controls data-setup="{}" width="auto" height="auto"></video>

            <button type="button" ng-click="prev()" class="controls-prev">Previous</button>
            <button type="button" ng-click="next()" class="controls-next">Next</button>