我正在用Javascript构建一个基于浏览器的应用程序。我尝试通过jQuery访问docusign:$.ajax({crossDomain:true, url:"https://demo.docusign.net/restapi/v2"})Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://demo.docusign.net/restapi/v2?_=140718