Modification des pages d'authentification

frontend/src/api.js

@@ -19,7 +19,8 @@ async function handle(res) {
   if (!res.ok) {
     const msg = (body && body.error) || res.statusText || 'Request failed';
     const err = new Error(msg);
-    err.status = res.status;
+    err.status  = res.status;
+    err.code    = body && body.code;
     err.details = body && body.details;
     throw err;
   }