Change cache to only cache when status is 200

src/libs/routes/api.js

@@ -8,7 +8,7 @@ const config = require(`${libs}/config`);
 
 const classes = require('./class');
 
-const cache = require('apicache').options({ debug: config.debug }).middleware;
+const cache = require('apicache').options({ debug: config.debug, statusCodes: {include: [200]} }).middleware;
 
 const enrollment = require('./enrollment');