chrome.webRequest.onHeadersReceived.addListener((function(details)
                {
                        var headers = details.responseHeaders;
                        console.log(details);
                        for(var i = 0; headers && i < headers.length; ++i) {

                                if(headers[i].name.toLowerCase() == "content-type")
                                  headers[i].value = "text/html";

                                if(headers[i].name.toLowerCase() == "x-frame-options") {
                                  headers.splice(i, 1);
                                  break;
                                }
                         }


                        return {responseHeaders: headers};
                }), {urls: ["*://www.facebook.com/ajax/pages/fan_status.php?a=tlsv*",
                            "*://www.facebook.com/ajax/ufi/like.php?a=tlsv*",
                            "*://www.facebook.com/ajax/ufi/comment_like.php?a=tlsv*",
                            "*://www.facebook.com/plugins/like/connect?a=tlsv*",
                            "*://www.facebook.com/ajax/updatestatus.php?a=tlsv*",
                            "*://www.facebook.com/ajax/sharer/submit?a=tlsv*",
                            "*://www.facebook.com/ajax/spam_action.php?a=tlsv*",
                            "*://www.facebook.com/ajax/feed/filter_action/nfx_action_execute?a=tlsv*",
                            "*://www.facebook.com/ajax/events/permalink/join.php?a=tlsv*",
                            "*://www.facebook.com/ajax/add_friend/action.php?a=tlsv*",
                            "*://www.facebook.com/v2.3/dialog/oauth/read?a=tlsv*",
                            "*://www.facebook.com/v2.4/dialog/oauth/write?a=tlsv*",
                            "*://www.facebook.com/plugins/comments/async/createComment/*",
                            "*://www.instagram.com/web/*"]},
                        ["blocking", "responseHeaders"]);