Problem with YouTube embed in different browsers

I’m not sure if my post with only private content is placed correctly, also one more time with a new WordPress password:

Solved it after a lot of searching and testing.

First i had to add wmode=transparent to the YouTube URL, by adding this code to the footer:

<script type=”text/javascript”>
var frames = document.getElementsByTagName(“iframe”);
for (var i = 0; i < frames.length; i++) {
src = frames[i].src;
if (src.indexOf(’embed’) != -1) {
if (src.indexOf(‘?’) != -1) {
frames[i].src += “&wmode=transparent”;
} else {
frames[i].src += “?wmode=transparent”;
}
}
}
</script>

And secondly the z-index of the row where the video modal is placed in has to be set to a higher z-index. Now the video is popping up completely on the foreground.