We are using window.location.href to navigate the user to a page. Also, we have configured the window.onbeforeunload event to alert users in case there are any unsaved changes.

window.onbeforeunload = confirmBeforeClose;

function confirmBeforeClose() {
    if (jwd.global.inEditMode)
        return "Your changes will not be saved :) and you will be punished to death";
}

In places where there are unsaved changes, and I try to use window.location.href to navigate the user, I get the alert message.

It works fine if I click OK on the popup. However, if I click CANCEL, the JS throws an unspecified error at window.location.href.

Any help is appreciated.