试了一下结果是一样的，而且看了一下请求，并不是js动态生成的，就是一个请求返回的

Request URL: https://ceac.state.gov/GenNIV/default.aspx

Request Method: GET

Status Code: 200 OK

Remote Address: 169.253.175.193:443

Referrer Policy: no-referrer-when-downgrade

Cache-Control: no-store, must-revalidate, no-cache, max-age=0

Content-Length: 15449

Content-Type: text/html

P3P: CP="{}"

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8

Accept-Encoding: gzip, deflate, br

Accept-Language: zh-CN,zh;q=0.9

Connection: keep-alive

Cookie: TSd0564521_75=TSd0564521_rc=1&TSd0564521_id=5&TSd0564521_cr=08ed00b128ab2800b54a2a267c40d93f2d4e3d051afd2652dab02956aa5412e761b21bce8ac2e047eac1e2662a8bf845:08da01e2ec04a00048e67135689dcb5c02b08ed91560c6b5247d620163e6dd5b325dfd10ff55aa7c346119ca071911bd95a4aa9036107e13475cc7006c3c7a4730c254f1be004e343e623d9f1085b242b31c941e70230d09a164c0a7a1ce1daee41c930c0f3c3e816b566decd3341803129dec2c292e383e15b43456a1d85b0b2041445ebb288c108620103108da546e4b03c438216a3ab6d61ffdfc34f25e00268143aabe1f8157&TSd0564521_ef=&TSd0564521_pg=0&TSd0564521_ct=0&TSd0564521_rf=0; _ga=GA1.3.302002379.1540949792; __utmz=27961390.1549086362.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASP.NET_SessionId=4fnkfa3rwtskw4nvedzfdvbh; isDirty=0; _gid=GA1.3.1223886846.1555403122; __utmc=27961390; TS0158a9a1=0146a68475bb72ad5afdad2ff24d73781a930f2ceb7b5203286f7231a180203beafc7c886e36157398ded42617318fa128e7315a25; __utma=27961390.302002379.1540949792.1555465108.1555468272.16; ExpiredSession=False; PageRefresh=True; TSPD_101=08ed00b128ab2800b54a2a267c40d93f2d4e3d051afd2652dab02956aa5412e761b21bce8ac2e047eac1e2662a8bf845:

Host: ceac.state.gov

Referer: https://ceac.state.gov/GenNIV/default.aspx

Upgrade-Insecure-Requests: 1

User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36

下边是response

(function(){

var securemsg;

var dosl7_common;

window["bobcmn"] = "111010101010102000000042000000052000000002d0564521200000096300000000300000000300000006/TSPD/300000008TSPD_101300000005https200000000200000000";

window.jyz=!!window.jyz;try{(function(){try{var jj,Jj,Lj=1,zj=1,Sj=1,ij=1,Ij=1;for(var zJ=0;zJ

var Ll=window.attachEvent||/mobi/i.test(window["\x6e\x61vi\x67a\x74\x6f\x72"]["\x75\x73e\x72A\x67\x65\x6et"]),Sl=+new Date+6E5,il,JL,lL,LL=setTimeout,zL=Ll?3E4:6E3;function ZL(){if(!document.querySelector)return!0;var J=+new Date,O=J>Sl;if(O)return jl(!1);O=JL&&!lL&&il+zL

document.addEventListener&&document.addEventListener("visibilitychange",function(J){document.visibilityState&&("hidden"===document.visibilityState&&J.isTrusted?lL=!0:"visible"===document.visibilityState&&(il=+new Date,lL=!1,ZL()))});var _L=[17795081,27611931586,1558153217];function iL(J){J="string"===typeof J?J:J.toString(36);var O=window[J];if(!O.toString)return;var Z=""+O;window[J]=function(J,Z){JL=!1;return O(J,Z)};window[J].toString=function(){return Z}}for(var jo=0;jo<_l.length>

jl(!1!==window.jyz);(function(){3%ZL()&&eval(function(J){J=J.split("l");var O="";for(var Z=0;Z

var Jo=35;window.OL={ZL:"08aab78bee027800150bf6f0861a415678d9e2757fb9f63efe7fbdbf8274b197d113239ba2346dc09a49fecca6727cbd9100307aa06db151bd0272c43138c71b3bfd036f46c50fd203a511e0dc48a6dd8904a6f2130a771f6427fc21840790fbe0d836f00e05940f783e27d34efa781401c68cbab15c72e6bd48ad03692cf03b"};function l(J){return 515>J}function L(J){var O=arguments.length,Z=[];for(var S=1;S>b>>0};

})();

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