I've been investigating this further thoroughly and we finally have the fix for this.
To clarify regarding the bug, when a form being embedded to a page and the form is coming from the same subdomain/domain, it shouldn't refresh during the initial load.
However, when the form is coming from different subdomain/domain, it will still refresh to overcome the cross domain cookie issue on Safari/Chrome. This one is intended.
The fix will be included within our next update.