You can capture it using BrowserMob Proxy
Here is a sample output by BrowserMob Proxy. In it, you can find a pair of Request and Response messages:
{
"log": {
"version": "1.2",
"creator": {
"name": "BrowserMob Proxy",
"version": "2.1.5",
"comment": ""
},
"pages": [
{
"id": "request",
"startedDateTime": "2024-06-08T22:14:41.393Z",
"title": "request",
"pageTimings": {
"comment": ""
},
"comment": ""
}
],
"entries": [
{
"pageref": "request",
"startedDateTime": "2024-06-08T22:14:42.333Z",
"request": {
"method": "GET",
"url": "http://demoaut.katalon.com/",
"httpVersion": "HTTP/1.1",
"cookies": [
],
"headers": [
{
"name": "Host",
"value": "demoaut.katalon.com"
},
{
"name": "Proxy-Connection",
"value": "keep-alive"
},
{
"name": "Upgrade-Insecure-Requests",
"value": "1"
},
{
"name": "User-Agent",
"value": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/125.0.6422.142 Safari/537.36"
},
{
"name": "Accept",
"value": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7"
},
{
"name": "Accept-Encoding",
"value": "gzip, deflate"
}
],
"queryString": [
],
"headersSize": 454,
"bodySize": 0,
"comment": ""
},
"response": {
"status": 301,
"statusText": "Moved Permanently",
"httpVersion": "HTTP/1.1",
"cookies": [
],
"headers": [
{
"name": "x-amz-id-2",
"value": "KFHwVuPpFAN1wMQpyEaZ8ZV0Fw3f4kHwPg6HdqFMNZjkwONwRkmMSJTl13ERGNUj/L2KTYZxEmg="
},
{
"name": "x-amz-request-id",
"value": "MEBHWRPRMVRMXVJW"
},
{
"name": "Date",
"value": "Sat, 08 Jun 2024 22:14:45 GMT"
},
{
"name": "Location",
"value": "https://katalon-demo-cura.herokuapp.com/"
},
{
"name": "Server",
"value": "AmazonS3"
},
{
"name": "content-length",
"value": "0"
}
],
"content": {
"size": 0,
"mimeType": "",
"text": "",
"encoding": "base64",
"comment": ""
},
"redirectURL": "https://katalon-demo-cura.herokuapp.com/",
"headersSize": 288,
"bodySize": 0,
"comment": ""
},
"cache": {
},
"timings": {
"comment": "",
"ssl": -1,
"send": 23,
"wait": 1425,
"receive": 14,
"connect": 196,
"blocked": 0,
"dns": 58
},
"serverIPAddress": "52.216.62.205",
"comment": "",
"time": 1717
},
{
"pageref": "request",
"startedDateTime": "2024-06-08T22:14:45.994Z",
"request": {
"method": "GET",
"url": "https://katalon-demo-cura.herokuapp.com/",
"httpVersion": "HTTP/1.1",
"cookies": [
],
"headers": [
{
"name": "Host",
"value": "katalon-demo-cura.herokuapp.com"
},
{
"name": "Connection",
"value": "keep-alive"
},
{
"name": "Upgrade-Insecure-Requests",
"value": "1"
},
{
"name": "User-Agent",
"value": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/125.0.6422.142 Safari/537.36"
},
{
"name": "Accept",
"value": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7"
},
{
"name": "Sec-Fetch-Site",
"value": "none"
},
{
"name": "Sec-Fetch-Mode",
"value": "navigate"
},
{
"name": "Sec-Fetch-User",
"value": "?1"
},
{
"name": "Sec-Fetch-Dest",
"value": "document"
},
{
"name": "sec-ch-ua",
"value": "\"HeadlessChrome\";v=\"125\", \"Chromium\";v=\"125\", \"Not.A/Brand\";v=\"24\""
},
{
"name": "sec-ch-ua-mobile",
"value": "?0"
},
{
"name": "sec-ch-ua-platform",
"value": "\"macOS\""
},
{
"name": "Accept-Encoding",
"value": "gzip, deflate, br"
}
],
"queryString": [
],
"headersSize": 662,
"bodySize": 0,
"comment": ""
},
"response": {
"status": 200,
"statusText": "OK",
"httpVersion": "HTTP/1.1",
"cookies": [
],
"headers": [
{
"name": "Report-To",
"value": "{\"group\":\"heroku-nel\",\"max_age\":3600,\"endpoints\":[{\"url\":\"https://nel.heroku.com/reports?ts=1717884886&sid=67ff5de4-ad2b-4112-9289-cf96be89efed&s=gZkab%2BVYbKxlAhTyqfcX%2FFOIdjaa6c4d5YnVn7Ki21M%3D\"}]}"
},
{
"name": "Reporting-Endpoints",
"value": "heroku-nel=https://nel.heroku.com/reports?ts=1717884886&sid=67ff5de4-ad2b-4112-9289-cf96be89efed&s=gZkab%2BVYbKxlAhTyqfcX%2FFOIdjaa6c4d5YnVn7Ki21M%3D"
},
{
"name": "Nel",
"value": "{\"report_to\":\"heroku-nel\",\"max_age\":3600,\"success_fraction\":0.005,\"failure_fraction\":0.05,\"response_headers\":[\"Via\"]}"
},
{
"name": "Connection",
"value": "keep-alive"
},
{
"name": "Date",
"value": "Sat, 08 Jun 2024 22:14:46 GMT"
},
{
"name": "Server",
"value": "Apache"
},
{
"name": "Expires",
"value": "Thu, 19 Nov 1981 08:52:00 GMT"
},
{
"name": "Cache-Control",
"value": "no-store, no-cache, must-revalidate"
},
{
"name": "Pragma",
"value": "no-cache"
},
{
"name": "Set-Cookie",
"value": "PHPSESSID=jgr70qg30qfd2md27ttnr12gsogpfsa5; path=/"
},
{
"name": "Transfer-Encoding",
"value": "chunked"
},
{
"name": "Content-Type",
"value": "text/html; charset=UTF-8"
},
{
"name": "Via",
"value": "1.1 vegur"
}
],
"content": {
"size": 4234,
"mimeType": "text/html; charset=UTF-8",
"text": "<!DOCTYPE html>\n<html lang=\"en\">\n\n<head>\n <meta charset=\"utf-8\">\n <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n <meta name=\"description\" content=\"CURA Healthcare Service; (678) 813-1KMS\">\n <meta name=\"robots\" content=\"noindex\">\n\n <title>CURA Healthcare Service</title>\n\n <!-- Bootstrap Core CSS -->\n <link href=\"https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css\" rel=\"stylesheet\">\n <link href=\"https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.6.4/css/bootstrap-datepicker.min.css\" rel=\"stylesheet\">\n\n <!-- Custom CSS -->\n <link href=\"https://katalon-demo-cura.herokuapp.com//css/theme.css\" rel=\"stylesheet\">\n\n <!-- Custom Fonts -->\n <link href=\"https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css\" rel=\"stylesheet\" type=\"text/css\">\n <link href=\"https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,700,300italic,400italic,700italic\" rel=\"stylesheet\" type=\"text/css\">\n\n <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->\n <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->\n <!--[if lt IE 9]>\n <script src=\"https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js\"></script>\n <script src=\"https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js\"></script>\n <![endif]-->\n\n</head>\n\n<body>\n<!-- Navigation -->\n<a id=\"menu-toggle\" href=\"#\" class=\"btn btn-dark btn-lg toggle\"><i class=\"fa fa-bars\"></i></a>\n<nav id=\"sidebar-wrapper\">\n <ul class=\"sidebar-nav\">\n <a id=\"menu-close\" href=\"#\" class=\"btn btn-light btn-lg pull-right toggle\"><i class=\"fa fa-times\"></i></a>\n <li class=\"sidebar-brand\">\n <a href=\"./\" onclick=\"$('#menu-close').click();\">CURA Healthcare</a>\n </li>\n <li>\n <a href=\"./\" onclick=\"$('#menu-close').click();\">Home</a>\n </li>\n <li>\n <a href=\"profile.php#login\" onclick=\"$('#menu-close').click();\">Login</a>\n </li>\n </ul>\n</nav>\n\n<!-- Header -->\n<header id=\"top\" class=\"header\">\n <div class=\"text-vertical-center\">\n <h1>CURA Healthcare Service</h1>\n <h3>We Care About Your Health</h3>\n <br>\n <a id=\"btn-make-appointment\" href=\"./profile.php#login\" class=\"btn btn-dark btn-lg\">Make Appointment</a>\n </div>\n</header>\n\n\n<!-- Footer -->\n<footer>\n <div class=\"container\">\n <div class=\"row\">\n <div class=\"col-lg-10 col-lg-offset-1 text-center\">\n <h4><strong>CURA Healthcare Service</strong>\n </h4>\n <p>Atlanta 550 Pharr Road NE Suite 525<br>Atlanta, GA 30305</p>\n <ul class=\"list-unstyled\">\n <li><i class=\"fa fa-phone fa-fw\"></i> (678) 813-1KMS</li>\n <li><i class=\"fa fa-envelope-o fa-fw\"></i> <a href=\"mailto:info@katalon.com\">info@katalon.com</a>\n </li>\n </ul>\n <br>\n <ul class=\"list-inline\">\n <li>\n <a href=\"#\"><i class=\"fa fa-facebook fa-fw fa-3x\"></i></a>\n </li>\n <li>\n <a href=\"#\"><i class=\"fa fa-twitter fa-fw fa-3x\"></i></a>\n </li>\n <li>\n <a href=\"#\"><i class=\"fa fa-dribbble fa-fw fa-3x\"></i></a>\n </li>\n </ul>\n <hr class=\"small\">\n <p class=\"text-muted\">Copyright © CURA Healthcare Service 2024</p>\n </div>\n </div>\n </div>\n <a id=\"to-top\" href=\"#top\" class=\"btn btn-dark btn-lg\"><i class=\"fa fa-chevron-up fa-fw fa-1x\"></i></a>\n</footer>\n\n<script src=\"https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.min.js\"></script>\n<script src=\"https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js\"></script>\n<script src=\"https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.6.4/js/bootstrap-datepicker.min.js\"></script>\n<script src=\"https://katalon-demo-cura.herokuapp.com//js/theme.js\"></script>\n\n</body>\n</html>\n\n",
"comment": ""
},
"redirectURL": "",
"headersSize": 865,
"bodySize": 4234,
"comment": ""
},
"cache": {
},
"timings": {
"comment": "",
"ssl": 1523,
"send": 2,
"wait": 514,
"receive": 24,
"connect": 1715,
"blocked": 0,
"dns": 110
},
"serverIPAddress": "54.205.8.205",
"comment": "",
"time": 2367
},
The “Header” is included, of course.