// your code goes here
content = "<code class=\"http language-http\">HTTP/1.1 200 OK\nServer: Apache 2.0\nCache-control: private\nX-Powered-By: JSP/2.2\nContent-Type: text/html;charset=utf-8\nContent-Language: en-US\nContent-Length: 3347\n</code>";
content = content.replace(/\n/g, "<unsualtag>");
var codereg = /<code(.*?)>(.*?)<\/code>/g;
var codesubstr = content.match(codereg);
console.log(codesubstr);
Ly8geW91ciBjb2RlIGdvZXMgaGVyZQoKY29udGVudCA9ICI8Y29kZSBjbGFzcz1cImh0dHAgbGFuZ3VhZ2UtaHR0cFwiPkhUVFAvMS4xIDIwMCBPS1xuU2VydmVyOiBBcGFjaGUgMi4wXG5DYWNoZS1jb250cm9sOiBwcml2YXRlXG5YLVBvd2VyZWQtQnk6IEpTUC8yLjJcbkNvbnRlbnQtVHlwZTogdGV4dC9odG1sO2NoYXJzZXQ9dXRmLThcbkNvbnRlbnQtTGFuZ3VhZ2U6IGVuLVVTXG5Db250ZW50LUxlbmd0aDogMzM0N1xuPC9jb2RlPiI7CmNvbnRlbnQgPSBjb250ZW50LnJlcGxhY2UoL1xuL2csICI8dW5zdWFsdGFnPiIpOwp2YXIgY29kZXJlZyA9IC88Y29kZSguKj8pPiguKj8pPFwvY29kZT4vZzsKCgp2YXIgY29kZXN1YnN0ciA9IGNvbnRlbnQubWF0Y2goY29kZXJlZyk7Cgpjb25zb2xlLmxvZyhjb2Rlc3Vic3RyKTsK