update oidc.conf

Author: vepatel

internal/configs/oidc/oidc.conf

@@ -39,8 +39,7 @@
         internal;
         proxy_ssl_server_name on; # For SNI to the IdP
         proxy_set_header      Content-Type "application/x-www-form-urlencoded";
-        proxy_set_body        "grant_type=authorization_code&client_id=$oidc_client&$args&redirect_uri=$redirect_base$redir_location";
-        proxy_method          POST;
+        proxy_set_header      Authorization $arg_secret_basic;
         proxy_pass            $oidc_token_endpoint;
    }
 
@@ -51,8 +50,7 @@
         internal;
         proxy_ssl_server_name on; # For SNI to the IdP
         proxy_set_header      Content-Type "application/x-www-form-urlencoded";
-        proxy_set_body        "grant_type=refresh_token&refresh_token=$arg_token&client_id=$oidc_client&client_secret=$oidc_client_secret";
-        proxy_method          POST;
+        proxy_set_header      Authorization $arg_secret_basic;
         proxy_pass            $oidc_token_endpoint;
     }