a pair of small fixes to infra/nginx.conf.j2, to ensure WebSockets functionality; & to role-select.js, to fix the inventory from not updating to that of the new position when a gamer passed the Role cards to the next position when he also occupies that position; separate inventories now ensured

src/apps/epic/static/apps/epic/role-select.js

@@ -121,6 +121,8 @@ var RoleSelect = (function () {
 
     function handleTurnChanged(event) {
         var active = String(event.detail.active_slot);
+        var invSlot = document.getElementById("id_inv_role_card");
+        if (invSlot) invSlot.innerHTML = "";
 
         // Update card-stack eligibility
         var stack = document.querySelector(".card-stack[data-user-slots]");