title: Form with tinyMCE textarea having html5 required attribute cannot submit
body: <p>This is not a question, but an answer which I want to share with you. I've just spent over four hours tearing my hair out on something which turns out to be a bug in either TinyMCE or Firefox.</p>
  
  <p>With TinyMCE loaded, if you specify the HTML5 <strong><code>required</code></strong> attribute on a <strong><code>textarea</code></strong> the form will just not submit in Firefox. No errors, nothing in Firebug, just a stubborn refusal to submit. </p>
  
  <p>I don't know if this is a FF or a TinyMCE bug and don't really care. I just don't want other coders to go through the aggravation I've gone through these last hours.</p>
  
  <p><strong>To ask a question:</strong> Is this bug documented anywhere? Does anyone know? </p>
  
  <p>If this is an inappropriate post for Stack Overflow, tell me and I'll delete it. </p>