fixed forwarding rule for websocket
Issue-ID: SDNC-1395
Signed-off-by: Michael Dürre <michael.duerre@highstreet-technologies.com>
Change-Id: Ida2e28662afdfee86269c51c0902df13a55d53ca
Former-commit-id: 
bcb12ca4fd5c6df770f96a0ac76170b6a4f2281f
     location /  {
         try_files $uri $uri/ @backend;
     }
-    location ^/websocket$ {
+    location /websocket {
         proxy_pass SDNRPROTOCOL://SDNRHOST:SDNRPORT/websocket;
         proxy_http_version 1.1;
         proxy_set_header Upgrade $http_upgrade;
-            proxy_set_header Connection "upgrade";
+        proxy_set_header Connection "upgrade";
     }
     location @backend {
         proxy_pass SDNRPROTOCOL://SDNRHOST:SDNRPORT;
 
     location /  {
         try_files $uri $uri/ @backend;
     }
-    location ^/websocket$ {
+    location /websocket {
         proxy_pass SDNRPROTOCOL://SDNRHOST:SDNRPORT/websocket;
         proxy_http_version 1.1;
         proxy_set_header Upgrade $http_upgrade;
-            proxy_set_header Connection "upgrade";
+        proxy_set_header Connection "upgrade";
     }
     location @backend {
         proxy_pass SDNRPROTOCOL://SDNRHOST:SDNRPORT;