title: Connect JS client with Python server
body: <p>I'm relatively new to JS and Python, so this is probably a beginners question. I'm trying to send a string from a JS client to Python Server (and then send the string to another Python client).</p>
  
  <p>This is my code:</p>
  
  <p>JS client:</p>
  
  <pre><code>    var socket = io.connect('http://127.0.0.1:8484');
      socket.send('lalala');
  </code></pre>
  
  <p>Python server:</p>
  
  <pre><code>HOST = '127.0.0.1'
  PORT = 8484
  s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  s.bind((HOST, PORT))
  s.listen(2)
  
  #JS
  conn1, addr1 = s.accept()
  print 'Connected by', addr1
  #PY
  conn2, addr2 = s.accept()
  print 'Connected by', addr2
  
  while 1:
      try:
          data = conn1.recv(1024)
      except socket.error:
          print ''
      if data:
          print data.decode('utf-8')
          conn2.send('data')
  </code></pre>
  
  <p>Python client:</p>
  
  <pre><code>def __init__(self): #inicializacion
      self.comando = '0'
      self.HOST = '127.0.0.1'
      self.PORT = 8484
      self.cliente = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
      fcntl.fcntl(self.cliente, fcntl.F_SETFL, os.O_NONBLOCK)
  
  def activate(self): 
      print "Plugin de envio en marcha."
  
  def deactivate(self):
      print "Plugin de envio off."
  
  def __call__(self, sample):
      self.cliente.connect((self.HOST, self.PORT))
      try:
          self.comando = self.cliente.recv(1024).decode('utf-8')
  
      except socket.error, e:
          self.comando = '0'
  
      print "******************"
      print self.comando
      print "******************"
  </code></pre>
  
  <p>I have no problem sending a random string from python server to python client, but I can't receive from the JS client. </p>
  
  <p>When I run the server and the clients there are no problems with the connection: </p>
  
  <pre><code>Connected by ('127.0.0.1', 52602)
  Connected by ('127.0.0.1', 52603)
  </code></pre>
  
  <p>But, for example, this is what I receive from the JS:</p>
  
  <pre><code>GET /socket.io/1/?t=1472322502274 HTTP/1.1
  Host: 127.0.0.1:8484
  Connection: keep-alive
  Origin: http://127.0.0.1:8880
  User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.84 Safari/537.36
  Accept: */*
  Referer: http://127.0.0.1:8880/normal.html
  Accept-Encoding: gzip, deflate, sdch
  Accept-Language: es-ES,es;q=0.8
  Cookie: io=e7675566ceab4aa1991d55cd72c8075c
  </code></pre>
  
  <p>But I want the string 'lalala'.</p>
  
  <p>Any ideas? </p>
  
  <p>(And thank you!)</p>