javascript - jquery ajax asynchronous requests error -

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at beginning sorry bad english.

jquery v2.0.0 in google chrome, mozilla firefox, opera last versions

today had problem 

timer_multy_update = setinterval(     function()     {         $.get(            'test.php',            function (result){               parseandupdatedata(result);            },            "json"         );     }, 500)

the problem if server hangs (i don't know how correctly), i.e. time answer server more 0,5 second, timer not stay , continues send request, before server answer can send 2-4 request, answer return little time and, problem, in firebug request correct, variable result contains 1 answer first answer server. maybe did not express myself clearly, want 2-4 request server return different answer, in result gets 2-4 times first answer server, , big problem.

i tried find information on internet, found nothing.

i not know why first thought error in jquery, began @ source code, , found mention heder , it's hashes. try change script , find way

$.get (     '/php/mine/update_cells.php',     't='+math.random(),     function (result)     {         parseandupdatedata(result);     },     "json" );

it works correctly want now, bug or mistake , not understanding

this isn't bug, it's caching. it's lot more efficient browser cache resource while have go , every time wants it. fine static resources, i.e. ones don't change web service returns different results same url want disable caching. if control server side code, add cache-control: no-cache header response. can disable caching in jquery far know, have use ajax() function - there's no way get().

$.ajax({   url: "/php/mine/update_cells.php",   success: function(result){      parseandupdatedata(result);   },   cache: false,   datatype: 'json' });

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