Report: Recent Value of ScriptApp.getService().getUrl() in Google Apps Script

There is a method of ScriptApp.getService().getUrl() for obtaining the Web Apps URL in Google Apps Script. Before the V8 runtime is released, this method had returned the endpoint like{deploymentId}/exec. After the V8 runtime was released, the endpoint of{deploymentId}/dev was returned. Now, it seems that this returns But, in the current stage, when I access this endpoint, the message of Sorry, unable to open the file at this time.