pakoy3k/manifest.json

## manifest.json
{
    "manifest_version": 2,

    "name": "Borg Analyzer Plugin",
    "description": "This extension will analyze a page",
    "version": "0.5",

    "browser_action": {
     "default_icon": "icon.png",
     "default_popup": "popup.html"
    },
    "permissions": [
     "tabs","activeTab","storage","declarativeContent"
     ]
  }

## popup.html
<!doctype html>
<html>
  <head>
    <title>Borg Analyzer</title>
    <script src="popup.js"></script>
  </head>
  <body>
    <h1>Borg Analyzer</h1>
    <button id="checkPage">Add this page</button>
  </body>
</html>

## popup.js
document.addEventListener('DOMContentLoaded', function() {
  var checkPageButton = document.getElementById('checkPage');

  function getData(){
    chrome.tabs.getSelected(null, function(tab) {
      d = document;
      aData = "";
      var j = document.all.length;
      var links = document.getElementsByTagName("title");
      chrome.tabs.query({currentWindow: true, active: true}, function(tabs){
      aData = tabs[0].url;
        wait(1000);
    });
  });
      return aData;
  }//getData


checkPageButton.addEventListener('click', function() {
// Create a request variable and assign a new XMLHttpRequest object to it.
var request = new XMLHttpRequest()
var urlAdd;
chrome.tabs.getSelected(null, function(tab) {
  d = document;
  aData = "";
  var j = document.all.length;
  var links = document.getElementsByTagName("title");
  chrome.tabs.query({currentWindow: true, active: true}, function(tabs){
  urlAdd = tabs[0].url;
  request.open('POST', 'http://127.0.0.1:5000?url='+urlAdd, true);
  request.send();
});
});
// Open a new connection, using the GET request on the URL endpoint
}, false);
}, false);
	{
	"manifest_version": 2,

	"name": "Borg Analyzer Plugin",
	"description": "This extension will analyze a page",
	"version": "0.5",

	"browser_action": {
	"default_icon": "icon.png",
	"default_popup": "popup.html"
	},
	"permissions": [
	"tabs","activeTab","storage","declarativeContent"
	]
	}