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{% if site.safe == false %}
<!-- During authoring, this automatically reloads the post as its changing -->
<script type="text/javascript">
(function() {
var qs = document.location.search;
var current_etag = qs.match(/etag=("?[a-zA-Z0-9_-]+)/);
if (current_etag !== null) { current_etag = current_etag[1]; }
var scrolly = qs.match(/scrolly=([0-9]+)/);
if (scrolly) {
scrolly = parseInt(scrolly[1]);
if (scrolly > 0) {
window.scrollTo(window.scrollX, scrolly);
setTimeout(function () {
window.scrollTo(window.scrollX, scrolly);
}, 10);
}
}
function check() {
var r = new XMLHttpRequest();
var url = document.location.href + ((qs && qs !== '') ? '&' : '?') + 'r=' + Math.random();
r.open('GET', url, true);
r.onreadystatechange = function() {
if (r.readyState == 4){
var found_etag = r.getResponseHeader('Etag');
if (found_etag) {
found_etag = found_etag.replace(/^"|"$/g);
}
//console.log('current_etag:', current_etag, 'found_etag:', found_etag);
if (current_etag === null) {
current_etag = found_etag;
} else if (found_etag !== current_etag) {
document.location.search =
'?etag=' + encodeURIComponent(found_etag) +
'&scrolly=' + window.scrollY;
return;
}
setTimeout(check, 500);
}
};
r.send(null);
}
check();
})();
</script>
{% endif %}
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