How can I abort an AJAX call?

 

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  • Abort Ajax requests using jQuery 18 answers

    • You need to assign your ajax request to variable, 

    var xhr = $.ajax({
***
});

    then call abort() 

    xhr.abort();

    In a single use of AJAX it is simple. The XMLHttpRequest has a abort method, which cancels the request. 

    // creating our request
xhr = $.ajax({
url: 'ajax/progress.ftl',
success: function(data) {
//do something
}
});

// aborting the request
xhr.abort();

    The xhr object also contains a readystate which contains the state of the request(UNSENT - 0, OPENED - 1, HEADERS_RECEIVED - 2, LOADING - 3 and DONE - 4). So we can use this to check whether the previous request was completed. 

    // abort function with check readystate
function abortAjax(xhr) {
if(xhr && xhr.readystate != 4){
xhr.abort();
}
}

// this function usage
abortAjax(xhr);
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