I have an onbeforeunload event which should fire when I leave the page and run the code I have attached to that event. I have placed this within the scripts tag of the cshtml in my page, so in theory it should only fire if I am on that particular page and move off it(my understanding of the event could be incorrect). However when I go to another page the onbeforeunload event does not seem to want to fire. I have tried setting a breakpoint on it but does not seem to hit it and am not getting any errors on my console in firebug.
I have looked at this post which one of the posters mentioned using this event to detect a page change Best way to detect when a user leaves a web page?
<script type="text/javascript">
$(document).ready(function () {
window.onbeforeunload = SaveDashboard;
});
function SaveDashboard(){
var gridArray = _.map($('.grid-stack .grid-stack-item:visible'), function (el) {
el = $(el);
var gridID = el.find('.grid-stack-item-content.ui-draggable-handle').first().attr('id');
var node = el.data('_gridstack_node');
return {
id: gridID,
x: node.x,
y: node.y,
width: node.width,
height: node.height
};
});
$.ajax({
url: 'Dashboard/EditWidgets/',
type: 'PUT',
data: {
widget: gridArray
},
success: function (dataset) {
},
failure: function (xhr, error) {
console.log(xhr)
console.log(error)
},
});
}
</script>