6 window
.parent
.postMessage("SignupComplete", "*");
10 <form action=
"inner_frame.html" onsubmit=
"send_post(); return false;"
12 <input type=
"text" id=
"username_field" name=
"username_field">
13 <input type=
"password" id=
"password_field" name=
"password_field">
14 <input type=
"submit" id=
"submit_button" name=
"submit_button">