Clientside Validation 1.33 fails on IE

Sorry, should have been a bit more articulate. The reason I say "any drupal form with ajax will fail" is because every form, be it webform or FAPI, that included an #ajax property, would immediately throw a JS alert, and this is the block of code in ajax.js it is failing on:

try {
    if (ajax.form) {
      // If setClick is set, we must set this to ensure that the button's
      // value is passed.
      if (ajax.setClick) {
        // Mark the clicked button. 'form.clk' is a special variable for
        // ajaxSubmit that tells the system which element got clicked to
        // trigger the submit. Without it there would be no 'op' or
        // equivalent.
        element.form.clk = element;
      }

      ajax.form.ajaxSubmit(ajax.options);
    }
    else {
      ajax.beforeSerialize(ajax.element, ajax.options);
      $.ajax(ajax.options);
    }
  }
  catch (e) {
    // Unset the ajax.ajaxing flag here because it won't be unset during
    // the complete response.
    ajax.ajaxing = false;
    alert("An error occurred while attempting to process " + ajax.options.url + ": " + e.message);
  }

The execution reaches the call to ajaxSubmit ("ajax.form.ajaxSubmit(ajax.options)") where it fails, but the error message is blank. Additionally, at least in the limited capacity I have to console.log using IE, it seems the ajax JS object is fully initialized, and ajax.element and ajax.options are both defined.

It is odd!

Sure: http://common.jpecatalogs.com/drupal/ has a form that illustrates this bug on the front page. This site is a sandbox purely for testing purposes; I had moved the module that defined this specific form from a site we are building onto this sandbox to ensure I could replicate the same issue.

You're right--it does work in IE9. IE7 & IE8 are where I am encountering this issue, even just switching to IE8 mode in IE9 F12 tools will replicate the issue. The form in question has some table data that I'd rather not transfer over, so here is a similar module developed side-by-side that shows the same issue: http://common.jpecatalogs.com/libs/drupal/roi_calculator.tar

Well, I appreciate the work, and I can confirm this fixes the problem. I had to replace it at sites/all/modules/jquery_update/replace/misc, though, so perhaps only jquery_update needs modified/fixed and not clientside_validation.