title: Filtering out a return character added by textarea
body: <p>I ran across a bug in textarea, or in our parsing of it, that I am having an issue correcting.  We have a textarea box with a <code>maxlength</code> of 250.  However, if one enters a 250 character string, removes one character, then enters a newline, submits it, then opens it again to edit it, the length reads as zero (as it is now over the max length) and is flagged as invalid.  At first I thought it was our data storage, but when looking over the string that I get back from textarea, it has a bizarre newline character in it that has a length of 3.  </p>
  
  <p>The string
  <code>asdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdf;laksdf;alsdfkasdl;fjasldfkja;sldfkja;sdlfkasdl;fasdl;fasdlf;kjasdf;lkajsfklas;fajs;fja;sdlfkjasd;flka↵sdf;laskdf;alsdfkjasldfkjas;dlfkas;ldfjkas;ldfkasl;dfjkasdl;fja;sld</code></p>
  
  <p>The character in question
  <code>↵</code></p>
  
  <p>As character codes:
  <code>97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,97,115,100,102,59,108,97,107,115,100,102,59,97,108,115,100,102,107,97,115,100,108,59,102,106,97,115,108,100,102,107,106,97,59,115,108,100,102,107,106,97,59,115,100,108,102,107,97,115,100,108,59,102,97,115,100,108,59,102,97,115,100,108,102,59,107,106,97,115,100,102,59,108,107,97,106,115,102,107,108,97,115,59,102,97,106,115,59,102,106,97,59,115,100,108,102,107,106,97,115,100,59,102,108,107,97,8629,115,100,102,59,108,97,115,107,100,102,59,97,108,115,100,102,107,106,97,115,108,100,102,107,106,97,115,59,100,108,102,107,97,115,59,108,100,102,106,107,97,115,59,108,100,102,107,97,115,108,59,100,102,106,107,97,115,100,108,59,102,106,97,59,115,108,100</code></p>
  
  <p>This means that the string I get from textarea has a length of 252 despite the length reading as 250 before being submitted.  </p>
  
  <p>The first question I have, is why is this happening?  I expected <code>\r\n</code> to be there, but instead I'm left with this odd character.</p>
  
  <p>I have tried to filter it out using the following:</p>
  
  <p><code>description = description.replace('↵', '\n');</code></p>
  
  <p><code>description = description.replace('\r\n', '\n');</code></p>
  
  <p><code>description = description.replace('\x21B5', '\n');</code></p>
  
  <p>but it failed to replace the character.  I tried just getting the index but was unable to find the character despite copying it from the string that is being parsed.  So my second question is, how can I filter out this character?   </p>