fix:#51 added http in feed for alt domain

reverseproxy.conf

@@ -130,6 +130,26 @@ http {
         }
     }
 
+    server {
+        listen              80;
+        listen              [::]:80;
+        server_name         htwkalender.de;
+
+        location /api/feed {
+            proxy_pass http://htwkalender-backend:8090;
+            client_max_body_size 2m;
+            proxy_connect_timeout 600s;
+            proxy_read_timeout 600s;
+            proxy_send_timeout 600s;
+            send_timeout 600s;
+            limit_req zone=feed burst=10 nodelay;
+        }
+
+        location / {
+            return 301 https://cal.htwk-leipzig.de$request_uri;
+        }
+    }
+
     server {
         listen              443 ssl;
         listen              [::]:443 ssl;