jquery ajax event not working in ie

I had a ajax called like this

 $.ajax({
    async: false,
    type: "POST",
    data: "{}",
    url: "/Clases/WebMethods.asmx/crearMenu",
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    success: createMenu
});

This works perfect in Firefox and Chrome, but it doesn't in IE, the most rare part is that when turn o开发者_运维知识库n the developers tools in the browser, it works!!!. Can someone help me, if it's a configuration in the browser or something else. I already tried erasing the cache and cookies of the browsers and doesn't solve my problem. Thanks

I come across this frequently in IE and generally, if something works with the developer tools enabled and not without, you will have a console.log somewhere in your code that is erroring as there is no console, preventing the rest of the code from executing.

I had a similar problem with the success function not working on IE (See my thread: JQuery button click not working after ajax form submit on IE). I solved it by making success callback a native JS method and not to user JQuery.

See if that solves your problem.