post form submitting a get request header - html

Question

I am developing a personal website in ruby on rails.
I have a form being dynamically generated as such:
<div>
<%= #request_type %>
<h1>Login Form</h1>
<% if #error == true %>
<h1>Error: Login Information Invalid</h1>
<% end %>
<%= form_for :user, url: {action: "login"}, method: :post do |f| %>
<p> E-mail: <br /> <%= f.text_field :email %></p>
<p> Password: <br /> <%= f.password_field :password %></p>
<p><%= submit_tag "Log In!", :disable_with => "Logging in..." %></p>
<% end %>
</div>
The #request_type is being set as request.request_method(), for debugging purposes for now.
The HTML generated for the form specifically looks like the following:
<form accept-charset="UTF-8" action="/login" method="post">
<!-- authentication token here -->
<p> E-mail: <br /> <input id="user_email" name="user[email]" type="text" /></p>
<p> Password: <br /> <input id="user_password" name="user[password]" type="password" /></p>
<p><input data-disable-with="Logging in..." name="commit" type="submit" value="Log In!" /></p>
</form>
However, any time I submit it, the headers are set with the GET method, instead of POST as declared in the form element (see method="post").
The R.O.R. might have nothing to do with what's going on... I am using Chrome to test my application. Any thoughts about why this is happening? I absolutely need the request to use POST.
If there's any other information that might be useful to solving this, please ask, and I will provide it.
Edit: Relevant routes:
login POST /login(.:format) user#login
GET /login(.:format) user#login'
I see no reason to post routes that are not associated with the "login" action.

Answer 1

and = submit_tag should be = f.submit_tag
Also replace:
<%= form_for :user, url: {action: "login"}, method: :post do |f| %>
With:
<%= form_for :user, url: login_path, method: :post do |f| %>