Why does password and username show up in the url bar when submitted?

Question

I'm having trouble trying to make a form that doesn't show the username and password in the url. I am using the "<form action="url" method="GET">" command, but it still shows. Any advice?
My Code:
<p> Username </p>
<input type="text" name="Username"><br/>
<p> Password </p>
<input type="password" name="Password"><br/>
<input type="submit"><br/>
</form>
<form action="Catshare1.html" method="GET">
</form>

Answer 1

Surround your code as below and use POST method instead of GET:

<form method='POST' action='..'>
// form code here
</form>