redirect to ?kiosk attempt 6

Author: Zohair-coder

k8s/drexel-scraper/templates/grafana-ingress.yaml

@@ -7,12 +7,18 @@ metadata:
     cert-manager.io/cluster-issuer: letsencrypt-prod
     nginx.ingress.kubernetes.io/server-snippet: |
       access_by_lua_block {
-        local args = ngx.req.get_uri_args()
-        -- Check if we're at the root and the kiosk parameter is missing
-        if ngx.var.uri == "/" and not args["kiosk"] then
-          args["kiosk"] = ""  -- add kiosk (even if empty)
-          local new_query = ngx.encode_args(args)
-          return ngx.redirect(ngx.var.scheme .. "://" .. ngx.var.host .. "/?" .. new_query, 302)
+        if ngx.var.uri == "/" then
+          local orig_args = ngx.var.args or ""
+          -- Check if "kiosk" is already in the query string
+          if not string.find(orig_args, "(^|&)kiosk($|&)", 1, true) then
+            local new_query
+            if orig_args ~= "" then
+              new_query = orig_args .. "&kiosk"
+            else
+              new_query = "kiosk"
+            end
+            return ngx.redirect(ngx.var.scheme .. "://" .. ngx.var.host .. "/?" .. new_query, 302)
+          end
         end
       }
 spec: