没有朋友可以看到我在Facebook上分享的内容（通过android）

Question

我创造了一个音乐播放器。在应用程序中，有一个功能，用户可以分享他们正在收听的歌曲。我严格遵循this official guide from facebook's developer's page.分享工作正常。但我的朋友都没有看到共享的帖子。我上传了一个截图，显示我在Facebook上分享的帖子。我试过改变帖子的隐私设置来自＆＃34;朋友＆＃34;公共＆＃34; /其他人。但似乎没有任何效果。

我错过了什么吗？

以下是代码段：

/* Set event leaving the page to execute actionFunction */

function visibilityChange(actionFunction) {

  window.focus(); /* window.onfocus = infoIn;  */

  var hidden = "hidden";

  /* Standards: */
  if (hidden in document) {
    document.addEventListener("visibilitychange", actionFunction);
  } else if ((hidden = "mozHidden") in document) {
    document.addEventListener("mozvisibilitychange", actionFunction);
  } else if ((hidden = "webkitHidden") in document) {
    document.addEventListener("webkitvisibilitychange", actionFunction);
  } else if ((hidden = "msHidden") in document) {
    document.addEventListener("msvisibilitychange", actionFunction);
  }
  /* IE 9 and lower: */
  else if ("onfocusin" in document) {
    document.onfocusin = document.onfocusout = actionFunction;
  }
  /* All others: */
  else {
    window.onpageshow = window.onpagehide = window.onfocus = window.onblur = actionFunction;
  }
}


/* Function to make browser window blink in task bar */

var comeBackAlerts = (function() {
  var oldTitle = document.getElementsByTagName('h1')[0].innerText; /* document.title; */
  var msg = "Arbir.ru";
  var intervalId;
  var blink = function() {
    intervalId = setInterval(function() {
      /* document.title = document.title == msg ? ' ' : msg; */
      if (document.title == msg) {
        document.title = oldTitle;
      } else {
        document.title = msg;
      }
    }, 1000);
  };
  var clear = function() {
    clearInterval(intervalId);
    document.title = oldTitle;
    window.onmousemove = null;
    window.onmouseout = null;
    intervalId = null;
  };
  return function() {
    if (!intervalId) {
      blink();
      window.onmousemove = clear;
    }
  };
}());

/* Running the functions */

visibilityChange(comeBackAlerts);