Different prices (with and without VAT) depending the browser

[Integris]

Hello guys,

We have noticed in our shop https://glamspot.eu that the prices are being displayed with or without VAT depending the browser used.

For example, in Chrome in macbook, Safari no iPhone is showing with VAT, in safari iPad, Safari no Macbook, Chrome in a Android device,  Edge and Chrome no Windows without VAT.

Of course the IVA is being calculated in the checkout and the final price, as well the price we see in the admin/backoffice is the normal price with VAT.

Any idea what this might be? Thanks for all the help.