Update elixir_auth_google.ex

Soo if the server starts using port 4001... its will only use the Scheme and Port cause most of the time the server its not being acessed with an port in the URL.

Author: fabricedge

lib/elixir_auth_google.ex

@@ -25,11 +25,16 @@ defmodule ElixirAuthGoogle do
   @doc """
   `get_baseurl_from_conn/1` derives the base URL from the conn struct
   """
-  @spec get_baseurl_from_conn(conn) :: String.t()
-  def get_baseurl_from_conn(%{host: h, port: p, scheme: s}) when p != 80 || p !=443 do
-    "#{Atom.to_string(s)}://#{h}:#{p}"
+   @spec get_baseurl_from_conn(conn) :: String.t()
+  def get_baseurl_from_conn(%{host: h, port: p, scheme: s}) do
+    if p != 80 do
+     "#{Atom.to_string(s)}://#{h}"
+       else
+     "#{Atom.to_string(s)}://#{h}:#{p}"
+    end
   end
 
+
   def get_baseurl_from_conn(%{host: h, scheme: s}) do
     "#{Atom.to_string(s)}://#{h}"
   end