javascript - Datatables.js ajax call hangs site -


i use php symfony 3 datatables.js plugin tables rendering on site , come across following issue: when try data server via ajax call, site hangs until ajax request finished. ajax call rather long - 20 seconds, , while in progress cannot open new tab in browser load other page of site. checked server (i use xampp windows) , saw not loaded 100%. suppose synchronous ajax call blocks browser further processing. use following code:

hanbdbookdatatable = $(statdatatableid).datatable({     bfilter: false,     "bsort": false,      pagelength: 10,      fixedheader: true,     "processing": true,     "serverside": true,     "ajax":  {         "async":true,//no effect         "url" : ajaxurl,         "type": "post",         "data": function(d) {             d.type = 'search_stat';             d.search_conditions    = readsearchdatainput();         }     },      "order": [[ 0, "desc" ]],     "columns": [         {"data": 'row_id', "searchable": false, "bsortable": true},          //...my columns...         {"data": 'button', "searchable": false, "bsortable": false},     ],      language: {         url: language_path     },     "drawcallback": function( settings ) {         console.log('datatables has redrawn table.');     } });

any ideas how fix welcome

upd_1 got server problem not occur, might not datatables. checked request headers on both servers , same. ideas why problem may persist welcome. thank you


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