Untitled

<html>
  <head>
    <title> XYZ </title>
    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
    <meta http-equiv="Content-Script-Type" content="text/javascript" />
    <meta http-equiv="Content-Style-Type" content="text/css" />
    <meta http-equiv="content-language" content="en" />
    <script type="text/javascript">
    if (navigator && navigator.appVersion && navigator.appVersion.match("Safari") && !navigator.appVersion.match("Chrome")) {
        // hack to force a window redraw
        window.onload = function() {
        document.getElementsByTagName('html')[0].style.backgroundColor = '#000000';
        }
    }
    </script>
  </head>

  <frameset id="wc-frameset" rows="82,*" frameborder="no" border="0" framespacing="0">
    <frame frameborder="0" src="/frontend/header/" name="top" marginwidth="0" marginheight="0" scrolling="no" noresize="noresize" />
      <frameset cols="*,156,850,*" frameborder="NO" border="0" framespacing="0">
        <frame frameborder="0" src="/frontend/fillbar/" name="fillbar" marginwidth="0" marginheight="0" scrolling="no"  noresize="noresize" />
        <frame frameborder="0" src="/frontend/navigation/" name="navigation" marginwidth="0" marginheight="0" scrolling="no"  noresize="noresize" />
        <frame frameborder="0" src="/frontend/frames/" name="content_area" marginwidth="0" marginheight="0" scrolling="no" noresize>
        <frame frameborder="0" src="/frontend/fillbar/" name="fillbar" marginwidth="0" marginheight="0" scrolling="no"  noresize="noresize" />
      </frameset>
  </frameset>
</html>

username = driver.find_element_by_id("username")
password = driver.find_element_by_id("password")
username.send_keys("****")
password.send_keys("****")
driver.find_element_by_class_name("bg-left").click()
#this bit works

driver.switch_to_frame("content_area")
#this seems to work too, got the frame name from the page source

search = driver.find_element_by_id("field-name")
search.send_keys("TEST")
#this fails, no element found

<div id="field-name" class="field field-StringField">
  <label for="name">Name</label>            <div class="input-con"><input id="name" name="name" type="text" value=""></div>
      </div>