i have following script

Parent Page(pair_pixel_filter.php):

 window.addEventListener(message, function(e) {

            $('#log').append(Received message:  + (e.data));

        }, false);

 $('.photo-upload-btn').click(function(event) {

            event.preventDefault();

            window.open($(this).attr(href), popupWindow, width=600,height=600,scrollbars=yes);

        });

The Child Page

$.ajax({

            type: 'post',

            url: url,

            data: {

                base64data: dataURL

            },

            success: function(data) {

                window.opener.postMessage(data, pair_pixel_filter.php);

                window.close(); }

        });

Basically opening a Popup and then doing some ajax on pop up and returning result to parent. But from Child i am getting this error.

Uncaught SyntaxError: Failed to execute 'postMessage' on 'Window': Invalid target origin 'pair_pixel_filter.php' in a call to 'postMessage'