Ionic 3 http request changed object to html on device

<!DOCTYPE html>↵<html lang="en" dir="ltr">↵<head>↵  <script data-ionic="inject">↵    (function(w){var i=w.Ionic=w.Ionic||{};i.version='3.9.3';i.angular='5.2.11';i.staticDir='build/';})(window);↵  </script>↵  <meta charset="UTF-8">↵  <title>Meristem Will App</title>↵  <meta name="viewport" content="viewport-fit=cover, width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">↵  <meta name="format-detection" content="telephone=no">↵  <meta name="msapplication-tap-highlight" content="no">↵↵  <link rel="icon" type="image/x-icon" href="assets/icon/favicon.ico">↵  <link rel="manifest" href="manifest.json">↵  <meta name="theme-color" content="#4e8ef7">↵↵  <!-- add to homescreen for ios -->↵  <meta name="apple-mobile-web-app-capable" content="yes">↵  <meta name="apple-mobile-web-app-status-bar-style" content="black">↵↵  <!-- cordova.js required for cordova apps (remove if not needed) -->↵  <script src="cordova.js"></script>↵↵  <!-- un-comment this code to enable service worker↵  <script>↵    if ('serviceWorker' in navigator) {↵      navigator.serviceWorker.register('service-worker.js')↵        .then(() => console.log('service worker installed'))↵        .catch(err => console.error('Error', err));↵    }↵  </script>-->↵↵  <link href="build/main.css" rel="stylesheet">↵↵</head>↵<body>↵↵  <!-- Ionic's root component and where the app will load -->↵  <ion-app></ion-app>↵↵  <!-- The polyfills js is generated during the build process -->↵  <script src="build/polyfills.js"></script>↵↵  <!-- The vendor js is generated during the build process↵       It contains all of the dependencies in node_modules -->↵  <script src="build/vendor.js"></script>↵↵  <!-- The main bundle js is generated during the build process -->↵  <script src="build/main.js"></script>↵↵</body>↵</html>↵"

This happens when I test on debug. when I test on browser , it dooesn’t.

Well, will need to see some code for debugging.