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  1. #1
    Registered User
    Join Date
    Mar 2010
    Location
    Zaandam, Holland
    Posts
    71

    Question Aborting Ajax calls using XMLHttpRequest.abort();

    I have an object XMLHttpRequest called xhttp, on my specified timeout, i wish to cancel
    the request and unset the object to try again later on.
    Somehow, it didnt work as expected.

    alert(typeof(xhttp));
    xhttp.abort();
    alert(typeof(xhttp));
    xhttp=null;
    alert(typeof(xhttp));
    delete xhttp;
    alert(typeof(xhttp));

    All four alerts return 'object'.

    BrowserNG 7.1.4 / N97 & N97 Mini

    Any hints?
    Last edited by JasperGoes; 2010-04-18 at 18:44. Reason: Added phonetype and browserversion

  2. #2
    Registered User
    Join Date
    Mar 2010
    Location
    Zaandam, Holland
    Posts
    71

    Re: Aborting Ajax calls using XMLHttpRequest.abort();

    Nevermind, found a workaround.

    if (xhttp) { xhttp.abort(); xhttp=null; }

    typeof(xhttp) STAYS object, so it seems to be persistent whatever you do,
    but a followup if(xhttp) returns false after aborting and setting to null.

    might be helpful to some of you at some point.

  3. #3
    Nokia Developer Expert
    Join Date
    Jun 2008
    Location
    Tampere
    Posts
    833

    Re: Aborting Ajax calls using XMLHttpRequest.abort();

    Hello,

    To my understanding abort() should not destroy the xmlhttprequest object itself:
    http://www.w3.org/TR/XMLHttpRequest/#the-abort-method

    So basically you could reuse the old xmlhttprequest object after checking the state and aborting it if needed.

    Please correct me if I'm wrong

    Br,
    Ilkka

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