Hi there,



I have included Facebook login Javascript SDK to create a social login button and display participants' Facebook user picture in Qualtrics. One problem I am facing is that displaying the user picture works fine the very first time I want to show it, but not anymore on follow up pages (i.e. after clicking the next button). The same applies to the social login button, but I only need that to show that once anyway, so that's not really a problem. I've tried simply copying the Javascript code to the question where I also want to show the user picture, as well as adding it to the header in the look&feel, but I cannot get it to work. It works fine for the first question I use it in (regardless of where in the survey it is), but not for any follow-up questions. Any help would be very much appreciated!



Thanks!



Here's the code I used:



Qualtrics.SurveyEngine.addOnload(function()

{

// This is called with the results from from FB.getLoginStatus().

function statusChangeCallback(response) {

console.log('statusChangeCallback');

console.log(response);

// The response object is returned with a status field that lets the

// app know the current login status of the person.

// Full docs on the response object can be found in the documentation

// for FB.getLoginStatus().

if (response.status === 'connected') {

// Logged into your app and Facebook.

getInfo();

} else {

// The person is not logged into your app or we are unable to tell.

document.getElementById('status').innerHTML = "<span style='color: #333333; font-size: 16px;'>Facebook account (please connect your account)</span>";

}

}



// This function is called when someone finishes with the Login

// Button. See the onlogin handler attached to it in the sample

// code below.

function checkLoginState() {

FB.getLoginStatus(function(response) {

statusChangeCallback(response);

});

}



window.fbAsyncInit = function() {

FB.init({

appId : '875253029346318',

cookie : true, // enable cookies to allow the server to access

// the session

xfbml : true, // parse social plugins on this page

version : 'v3.1' // use graph api version 2.8

});



// Now that we've initialized the JavaScript SDK, we call

// FB.getLoginStatus(). This function gets the state of the

// person visiting this page and can return one of three states to

// the callback you provide. They can be:

//

// 1. Logged into your app ('connected')

// 2. Logged into Facebook, but not your app ('not_authorized')

// 3. Not logged into Facebook and can't tell if they are logged into

// your app or not.

//

// These three cases are handled in the callback function.



FB.getLoginStatus(function(response) {

statusChangeCallback(response);

});



};



// Load the SDK asynchronously

(function(d, s, id) {

var js, fjs = d.getElementsByTagName(s)[0];

if (d.getElementById(id)) return;

js = d.createElement(s); js.id = id;

js.src = "https://connect.facebook.net/en_US/sdk.js";

fjs.parentNode.insertBefore(js, fjs);

}(document, 'script', 'facebook-jssdk'));



// Here we run a very simple test of the Graph API after login is

// successful. See statusChangeCallback() for when this call is made.

function getInfo() {

console.log('Welcome! Fetching your information.... ');

FB.api('/me', 'GET', {fields: 'first_name,last_name,name,id,picture.width(100).height(100)'}, function(response) {

document.getElementById('status').innerHTML = "<img src='" + response.picture.data.url + "'>";

});

}



});