This looks like a common issue with ngnix. You might contact your host or server admin to see if they can help configure ngnix to by-pass this issue.
I think the chances are low for a code work-a-round in the plugin, but let me know what your host says anyways just in case they have a different angle then the suggestions on Google.
Thanks~
Hi another help,
woocommerce How do i create trasaction failed return to shoping cart(ie:dont clear cart detailes) Could you solve this problem
I would ping the woocommerce folks they will have a better understanding of the software…
No Problem… Glad to help!