Is it permitted to enter and drink at a gastropub (or restaurant/bar). Assuming the drinks (beer/whiskey) are kosher and this applies only in regards to someone who holds by the Shach (that one is permitted to drink barley products amongst non-Jews as per an interpretation of the Rema.)
My question stems from the ruling that it is forbidden to enter a treif restaurant unless in extenuating circumstances (maris ayin). However a bar as seen above is a little more lenient. So what happens when you combine the two?