BC forms the required* is ignored allowing empty submissions

The following cfform code from htmlgoodies.com shows that the required attribute does actually work:

<cfform>

<p>

<label for="name">Name:</label><br />

<cfinput type="text" name="name" required="true" message="Please provide your name." />

</p>

<p>

<label for="email">Email Address:</label><br />

<cfinput type="text" name="email" required="true" validate="email"

message="Please provide a valid email address." />

</p>

<p>

<label for="message">Your Message:</label><br />

<cftextarea name="message" required="true" message="Please enter a message to send."/>

</p>

<cfinput type="submit" name="Submit" value="Send Message" />

</cfform>