javascript jsonp memory leak

Question

I'm seeing the same problem described in Memory Leak When Pulling JSON from WEB.

I simply have a function that makes a jsonp ajax request periodically. My function is called by another function triggered by a setInterval.

I see a memory leak in all broswers that I've tried, IE, Safari, FireFox. Something I see in the Safari script debugger is that each response to an ajax request is listed as a script in the drop down list in the script debugger window, as if there is some kind of script object not getting cleaned up.

I'm using jquery 1.6.2. It is a "long term" leak, not cleaned up after running for several minutes.

Any ideas what is causing this?

    request: function ()
    {
        $.ajax({
            url: <myurl>
            dataType: "jsonp",
            jsonp: "jsoncallback",
            timeout: 5000,
            cache: false,

            beforeSend: function (xhr)
            {
            },

            success: function (data, status, xhr)
            {
            },

            error: function (xhr, status, error)
            {
            },

            complete: function (req, status)
            {
            }
        });
    }
    ...
    setInterval(request, 100);

genesis · Answer 1 · 2011-09-14T18:43:43.300

1

The fact you're sending ajax request every 100 milliseconds is enough.

Be aware, setInterval(request, 100); - 100 does not mean seconds, but milliseconds. 1 second = 1000 miliseconds

edited Sep 14 '11 at 18:43

answered Sep 14 '11 at 18:37

genesis

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Thanks,yes I'm aware I'm sending requests at that rate. The application requires it. I'm in control of the server side and expect that kind of responsiveness. – Thomas Hamilton Sep 14 '11 at 19:07
@ThomasHamilton: can you tell me, for what? – genesis Sep 14 '11 at 19:14

score 0 · Answer 2 · edited May 23 '17 at 12:04

0

As far as a jQuery leaks, see jQuery memory leak with DOM removal

There is a utility for finding memory leaks: http://www.outofhanwell.com/ieleak/Drip-0.5.exe

@genesis is correct too.

edited May 23 '17 at 12:04

Community

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answered Sep 14 '11 at 18:39

Todd Moses

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javascript jsonp memory leak

2 Answers2