One common source of custom code we receive is DoubleClick Floodlight. Floodlight “assumes” it is the first item on the page. However, clients often experience issues with this code, as it cannot be the first item on the Results page because of the nature of our Health Assessment apps. When placed in the “Results Page Code” field in the Custom Code section, the Floodlight tag clears the results page completely, and end-users only see a blank page.

The solution to this issue is to find the following highlighted section in your DoubleClick Floodlight code:

<script type="text/javascript">
var axel = Math.random() + "";
var a = axel * 10000000000000;
document.write('<iframe src="https://1234567.fls.doubleclick.net/activityi;src=1234567;type=abcde123;cat=fghij456;u1=[friendlyname1];u2=
.[friendlyname2];ord=' + a + '?" width="1" height="1" frameborder="0" style="display:none"></iframe>');
></script>
<noscript>
<iframe src="https://1234567.fls.doubleclick.net/activityi;src=1234567;type=abcde123;cat=fghij456;u1=[friendlyname1];u2=[friendlyname2];ord=1?" width="1" height="1" frameborder="0" style="display:none"></iframe>
</noscript>

Once found, change that code to the following highlighted section:
<script type="text/javascript">
var axel = Math.random() + "";
var a = axel * 10000000000000;
$('body').append('<iframe src="https://1234567.fls.doubleclick.net/activityi;src=1234567;type=abcde123;cat=fghij456;u1=[friendlyname1];u2=[friendlyname2];ord=' + a + '?" width="1" height="1" frameborder="0" style="display:none"></iframe>');
</script>
<noscript>
<iframe src="https://1234567.fls.doubleclick.net/activityi;src=1234567;type=abcde123;cat=fghij456;u1=[friendlyname1];u2=[friendlyname2];ord=1?" width="1" height="1" frameborder="0" style="display:none"></iframe>
</noscript>