remove CORS origin trailing slash (#13)

this is not accepted by the ingress and  falls back to wildcard

Author: davidcheung

templates/kubernetes/overlays/production/ingress.yml

@@ -13,7 +13,7 @@ metadata:
     external-dns.alpha.kubernetes.io/hostname: <% index .Params `productionBackendSubdomain` %><% index .Params `productionHostRoot` %>
     # CORS
     nginx.ingress.kubernetes.io/enable-cors: "true"
-    nginx.ingress.kubernetes.io/cors-allow-origin: "https://<% index .Params `productionFrontendSubdomain` %><% index .Params `productionHostRoot` %>/"
+    nginx.ingress.kubernetes.io/cors-allow-origin: "https://<% index .Params `productionFrontendSubdomain` %><% index .Params `productionHostRoot` %>"
 
 spec:
   rules:

templates/kubernetes/overlays/staging/ingress.yml

@@ -13,7 +13,7 @@ metadata:
     external-dns.alpha.kubernetes.io/hostname: <% index .Params `stagingBackendSubdomain` %><% index .Params `stagingHostRoot` %>
     # CORS
     nginx.ingress.kubernetes.io/enable-cors: "true"
-    nginx.ingress.kubernetes.io/cors-allow-origin: "https://<% index .Params `stagingFrontendSubdomain` %><% index .Params `stagingHostRoot` %>/"
+    nginx.ingress.kubernetes.io/cors-allow-origin: "https://<% index .Params `stagingFrontendSubdomain` %><% index .Params `stagingHostRoot` %>"
 
 spec:
   rules: