JQuery error: XML filter is applied to non-XML value (function (E, F) {return new (o.fn.init)(E, F);})

I am getting this slightly cryptic error message:

XML filter is applied to non-XML value (function (E, F) {return new (o.fn.init)(E, F);})

when I run this code snippet

function justDoIt(arg){
    msg = arg开发者_运维问答.msg;
    if(arg.ok)
        jQuery.(".action-button").each(function(idx,el){jQuery(this).removeClass('enabled');} );
}

arg is a JSON format response form the server.

Anyone knows how to fix this?

---

On the 4th line there's a . after jQuery that you should remove:

if(arg.ok) {
    $('.action-button').each(function() {
        $(this).removeClass('enabled');
    });
}

Which could be simplified to:

if(arg.ok) {
    $('.action-button').removeClass('enabled');
}

---

It happens to me too. I get this error when I call a function of a diferent window:

function anyFunction() {
    popup=window.open("...");
    popup.someFunction(...);
}

When I execute the code I get the error message: "error: xml filter is applied to non-xml value". I solved thwe issue in this way:

function anyFunction() {

    popup=window.open("...");

    if(popup.someFunction) {
        popup.someFunction(...);
    } else {
        setTimeout("anyFunction()", 1000);
    }
}

Then the function in the popup is only called when the is finded by the opener.