ERR_QUIC_PROTOCOL_ERROR

Hello, since the last update of Google Chrome (Version 61.0.3163.91 (Official Build) (64-bit), cart wont load.
Virtuemart 2.6.20, Joomla 2.5.28, storefront template.
The error shown on console is the following :
mootools-core.js:485 POST https://www.growmarket.gr/index.php?tmpl=json net::ERR_QUIC_PROTOCOL_ERROR
You have to disable the experimental quic from chrome browser in order the cart to load, but this is a serious issue since many people use Chrome.
Thanks in advance

Hi,
Is it your website? https://www.growmarket.gr
I can't see the problem with the cart (last version of Google Chrome)