php - No 'Access-Control-Allow-Origin' header, the same server -


primary want say, i'm not sending requests domain, in similar questions. server.php located in the same domain

i have simple service share information original key. so, when in info field write link in first place, blank error, otherwise, success callback. >>page<<. simplified post method: 

var post = function (key, value) {  $.ajax('/server/server.php', {     type: 'post',     data: {         "key": key,         "value": value     },     datatype: 'json',     success: function (result) {         if (!result.hasownproperty('error')) {             showtooltip('good', 'normal', result.result);         } else {             showtooltip('bad', 'big', result.error);         }     },     error: function (requestobject, error, errorthrown) {         showtooltip('bad', 'big', 'error ' + errorthrown);         console.log(requestobject);     } }); }

server.php code: 

if(isset($_post['key'])&&isset($_post['value'])){             $key = $_post['key'];             $value = $_post['value'];             $iseternal = 0;             $existed_result = mysql_query("select * `table` `key`='".mysql_real_escape_string($key)."'", $link);             //$existed_rows = mysql_num_rows($existed);             $num_rows = mysql_num_rows($existed_result);             if($num_rows == 0){                 //inserting table                 if(isset($result)){                     $response = array(                       "result" => "info posted succesfully"                     );                     echo json_encode($response);                     exit;                 }else{                     $response = array(                       "error" => "error while posting"                     );                     echo json_encode($response);                     exit;                 }              }else {                 $response = array(                   "error" => "this key existed"                 );                 echo json_encode($response);                 exit;             }         }

i can't figure out why happening, guys me please?

update: people http:// isnn't permitted server, why can't use iframe? (i've added whitelist)


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