Authorization service with POST (support API version 1.1)

Change-Id: Ia5288c8d0949ed7ee77b5422f10bc19ea8cc3398
diff --git a/t/server/mock.pl b/t/server/mock.pl
index 0aa8a9b..134fb97 100644
--- a/t/server/mock.pl
+++ b/t/server/mock.pl
@@ -848,7 +848,7 @@
   );
 };
 
-post '/v1.0/oauth2/authorize' => sub {
+get '/v1.0/oauth2/authorize' => sub {
   my $c = shift;
   my $type = $c->param('response_type');
   my $client_id = $c->param('client_id');