Map to custom domain still displays *.scapp.io - meteor

Question

I just followed the procedure to map a single domain to my custom domain:
Create the domain mydomain.com in ORGS
Create the route myapp.mydomain.com in SPACES
Map my app to both myapp.scapp.io and myapp.mydomain.com in SPACES
Add a CNAME DNS entry for mydomain.com with the name myapp and target mapapp.scapp.io (I'm using amazon route 53)
The mapping works, I can access myapp with myapp.mydomain.com, but the address still shows myapp.scapp.io
How can I make the mapping transparent and display myapp.mydomain.com in the address bar ?

Answer 1

Update:
I managed to make it work on amazon route 53:
Create the domain mydomain.com in ORGS
Create the route myapp.mydomain.com in SPACES
Map my app to both myapp.scapp.io and myapp.mydomain.com in SPACES
Add a CNAME DNS entry for mydomain.com with the name myapp-cname and target myapp.scapp.io
Add a CNAME DNS entry for mydomain.com with the name myapp, enabling Alias and target myapp-cname.mydomain.com
It shows myapp.mydomain.com in the address bar as expected, but I doubt this is the right way to do it.

Answer 2

#UPDATE The issue was coming from my meteor application that did not properly force requests to https. I was using the force-ssl package, but as said in the README:
Meteor bundles (i.e. meteor build) do not include an HTTPS server or certificate. A proxy server that terminates SSL in front of a Meteor bundle must set the x-forwarded-proto or forwarded (RFC 7239) header for this package to work.
Therefore I am using a staticfile application with a custom nginx.conf.
I created a staticfile application using the staticfile-buildpack, add my private domains to the routes in the manifest.yml, and set the env variable FORCE_HTTPS to true:
applications:
- name: my-nginx
memory: 128M
instances: 1
buildpack: https://github.com/cloudfoundry/staticfile-buildpack.git
routes:
- route: 'app1.mydomain.com'
- route: 'app2.mydomain.com'
- route: 'app1.subdomain.mydomain.com'
- route: 'app2.subdomain.mydomain.com'
- route: 'app3.mydomain.com'
env:
FORCE_HTTPS: true
The next step was to create the custom nginx.conf with a server{...} block for each of my private domains, with a proxy_pass on the corresponding scapp.io domain (here with two private domains):
worker_processes 1;
daemon off;
error_log <%= ENV["APP_ROOT"] %>/nginx/logs/error.log;
events { worker_connections 1024; }
http {
charset utf-8;
log_format cloudfoundry '$http_x_forwarded_for - $http_referer - [$time_local] "$request" $status $body_bytes_sent';
access_log <%= ENV["APP_ROOT"] %>/nginx/logs/access.log cloudfoundry;
default_type application/octet-stream;
include mime.types;
sendfile on;
gzip on;
gzip_disable "msie6";
gzip_comp_level 6;
gzip_min_length 1100;
gzip_buffers 16 8k;
gzip_proxied any;
gunzip on;
gzip_static always;
gzip_types text/plain text/css text/js text/xml text/javascript application/javascript application/x-javascript application/json application/xml application/xml+rss;
gzip_vary on;
tcp_nopush on;
keepalive_timeout 30;
port_in_redirect off; # Ensure that redirects don't include the internal container PORT - <%= ENV["PORT"] %>
server_tokens off;
server {
listen <%= ENV["PORT"] %>;
server_name app1.mydomain.com;
# Redirects to https if the environment variable "FORCE_HTTPS" is set to true
<% if ENV["FORCE_HTTPS"] %>
if ($http_x_forwarded_proto != "https") {
return 301 https://$host$request_uri;
}
<% end %>
location / {
proxy_pass https://app1.scapp.io/;
}
}
server {
listen <%= ENV["PORT"] %>;
server_name app2.mydomain.com;
<% if ENV["FORCE_HTTPS"] %>
if ($http_x_forwarded_proto != "https") {
return 301 https://$host$request_uri;
}
<% end %>
location / {
proxy_pass http://app2.scapp.io/;
}
}
}
The next steps are the usual ones:
Create a domain mydomain.com in the right ORG and each of my private routes in the correct SPACE.
Create SSL certificates for each of my private domains in the swisscomdev console.
Create CNAME DNS entries for mydomain.com with the name * and target my-nginx.scapp.io (the scapp.io route automatically assigned by swisscom for my staticfile application).
Lastly, I pushed the application with cf push and it works like a charm !