Unable to display jQuery modal due to error "Uncaught DOMException: Failed to execute 'appendChild' on 'Node': The new child element contains the parent."

Check out the JS Fiddle demo here.

Here is the code in question:

$('#infoTable').click(infoModal);

function infoModal(){
    var table = "THIS IS A TABLE";
    $("#dialogContainer").dialog({
        appendTo: "#msg-dialog",
        autoOpen: false,
        width: 400,
        modal: true,
        resizable: false,
        buttons: {
            close: { text: 'Close', click: function(){
                    $(this).dialog("close");
                    console.log("Thanks for using this!");
                }
            }
        }
    });
    //Append the table variable to the dialog box
    $('#msg-dialog').after(table);
}

I am new to implementing the jQueryUI dialog feature and I believe my approach may be incorrect. My aim is to display the dialog box, but all I am seeing is the error message

Uncaught DOMException: Failed to execute 'appendChild' on 'Node': The new child element contains the parent
. From what I understand, the child div element (#msg-dialog) should be within the #dialogContainer div, not the other way around. Is there a specific modification I need to make to resolve this issue?

Answer №1

This presents an issue:

appendTo: "#msg-dialog",

The problem lies in the fact that #msg-dialog exists within #dialogContainer, and a dialog is created on the latter div and appended to the former, which is a child of the latter.

A thorough review of the API documentation will provide clarity:

appendTo

Type: Selector Default: "body" Specify the element to which the dialog (and overlay, if modal) should be attached.

Source: jqueryUI

The solution is to remove the msg-dialog div from the dialogContainer - view the UPDATED FIDDLE HERE

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