问题

搞地产活动的H5页面，有个自动播放音乐的按钮，安卓手机自动播放正常，苹果手机中就会出现不自动播放的情况，而且点击播放按钮还是可以播放音乐的。

解决代码

<audio id="back_music" autoplay="" loop="" src="{if !empty($base['backmusic'])}{php echo tomedia($base['backmusic']);}{else}../addons/ruifan_yaoyiyao/static/background_music.mp3{/if}" preload="auto"></audio>
<div id="play_button">
    <img src="../addons/ruifan_yaoyiyao/images/audio.png" width="100%" />
</div>

document.addEventListener('DOMContentLoaded', function () {
    function audioAutoPlay() {
        var audio = document.getElementById('back_music');
        audio.play();
        document.addEventListener("WeixinJSBridgeReady", function () {
            audio.play();
        }, false);
    }
    audioAutoPlay();
});