“Add to cart” occasionally doesn’t work

(Woocommerce 2.6.14)

Hi!

I have a problem regarding “adding products to cart”. It usually works but, occasionally, if I click the “add to cart” button too fast after loading the product page, (where too fast could be less than 1-2 seconds, sorry, I know it’s far from be an accurate measure), it doesn’t add any product to the cart, nor shows any message. It works like a simple redirection.

It seems the button “add to cart” action and the POST data sent by the form are both correct but definitely there’s something wrong.

I’ve tried it both logged in / not logged in with the same result, but it seems it works worse on slow connections.

Any ideas??

Thanks in advance.