Dropdown inside collapsed responsive nabar not working correctly

[keyboSlice]

I have the following navbar on my website:

<div class="navbar navbar-inverse">
    <div class="navbar-inner">
        <button type="button" class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
            <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
    </button>
    <div class="nav-collapse collapse">
        <ul class="nav">
            <li><a href="index.php">Home</a></li>
            <li><a href="one2one.php">One to One</a></li>
            <li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown" id="dLabel">Classes <b class="caret"></b></a>
                <ul class="dropdown-menu" role="menu" aria-labelledby="dLabel">
                    <li><a href="classes.php">Classes</a></li>
                    <li><a href="online-yoga-classes.php">Online Yoga Classes</a></li>
                    <li><a href="free-downloads.php">Free Downloads</a></li>
                    <li><a href="gallery.php">Gallery</a></li>
                </ul>
            </li>
            <li><a href="retreats-workshops.php">Retreats &amp; Workshops</a></li>
            <li><a href="pregnancy-mums.php">Pregnancy Mums</a></li>
            <li><a href="treatments.php">Treatments</a></li>
            <li><a href="about-me.php">About Me</a></li>
            <li><a href="testimonials.php">Testimonials</a></li>
            <li><a href="about-yoga.php">About Yoga</a></li>
        </ul>
    </div>
</div>
</div>

The issue I am having is that when the navbar is collapsed on mobile devices (it works correctly when collapsed using a desktop computer), the links within my dropdown do not navigate to the new page, selecting a link within the dropdown just closes the dropdown as though the click is being registered on the dropdown parent li, not the link itself.

As I say when the navbar is expanded, or is collapsed on a device which uses a mouse the link navigates to the new page correctly, it seems to be when I press a link using a touch device that I have issues, you can view the problem live on http://yogarelax.harpoonmysite.com

Any assistance with this would be much appreciated, thank you

[cvrebert]

Duplicate of #7968.

[keyboSlice]

Apologies, i'll research the issue alittle more thoroughly next time!