Bootstrap dropdown Jquery Uncaught Error: Syntax error, unrecognized expression
<p>I am trying to add an external http:// link on my bootstrap drop-down menu, but it always cause an</p>

<pre><code>Uncaught Error: Syntax error, unrecognized expression: http://example.com/
</code></pre>

<p>Here's the code I used with jQuery v1.11.3 and bootstrap v3.3.5</p>

<pre><code>&lt;nav class="main-navi"&gt;
    &lt;div class="webinarlink"&gt;&lt;a class="btn btn-danger btn-block" data-target="#" style="background-color:#EA4A2B;margin:auto;" href="http://example.com/" target="_blank"&gt;&lt;i class="icon-users"&gt;&lt;/i&gt;Webinar&lt;/a&gt;&lt;/div&gt;
    &lt;ul&gt;
        &lt;li class="active"&gt;&lt;a class="scroll-up" href="#home"&gt;&lt;i class="fa fa-home"&gt;&lt;/i&gt;&amp;nbsp;Home&lt;/a&gt;&lt;/li&gt;
        &lt;li class=""&gt;&lt;a class="scroll" href="#features"&gt;Features&lt;/a&gt;&lt;/li&gt;
        &lt;li class=""&gt;&lt;a class="scroll" href="#testimonials"&gt;Testimonials&lt;/a&gt;&lt;/li&gt;
        &lt;li class=""&gt;&lt;a class="scroll" href="#pricing"&gt;Prices&lt;/a&gt;&lt;/li&gt;
        &lt;li class="has-dropdown"&gt;&lt;a class="scroll" href="#"&gt;Help&lt;i class="fa fa-caret-down"&gt;&lt;/i&gt;&lt;/a&gt;
            &lt;ul class="dropdown"&gt;
                &lt;li class=""&gt;&lt;a class="scroll" href="#faq"&gt;&lt;i class="fa fa-question-circle"&gt;&lt;/i&gt;&amp;nbsp;FAQ&lt;/a&gt;&lt;/li&gt;
                &lt;li class=""&gt;&lt;a class="scroll" href="#team"&gt;&lt;i class="fa fa-info-circle"&gt;&lt;/i&gt;&amp;nbsp;About Us&lt;/a&gt;&lt;/li&gt;
                &lt;li class=""&gt;&lt;a class="scroll" href="#contus"&gt;&lt;i class="fa fa-envelope"&gt;&lt;/i&gt;&amp;nbsp;Contact Us&lt;/a&gt;&lt;/li&gt;
                &lt;li class=""&gt;&lt;a href="#pricing" class="scroll" onclick="Tawk_API.toggle();"&gt;&lt;i class="fa fa-comments"&gt;&lt;/i&gt;&amp;nbsp;Chat with Us&lt;/a&gt;&lt;/li&gt;
            &lt;/ul&gt;
        &lt;/li&gt;
    &lt;/ul&gt;
&lt;/nav&gt;
</code></pre>

<p>I tried adding data-target="#" but it didn't work.</p>