414 Request-URI Too Long

jaread83

You can use Post call instead. 

Instead of putting the data on the URL you should be putting it in the body of a POST request. You need to add a data value to the object you're passing to the ajax function call. Like this:

$.ajax({
        url: dest_url,
        type:"post",
        async: false,
        data: {
            about: about
        },
        success: function(response){                                       
        },
        error:function(xhr, ajaxOptions, thrownError){alert(xhr.responseText); ShowMessage("??? ?? ?????? ??????? ????","fail");}
    });