Cannot get request body from form in Sinatra

Question

I have a form submission in Sinatra that's not showing any received params. Chrome is showing the form submission payload as proper, so the form is fine. It's just not making it through to Sinatra for some reason. Status code 200. I don't know what to post here. My route has puts params as first entry in the route and it's showing up empty.

Any ideas how I can fix this? I am thinking something is interrupting params before they can be used.

Here is the form and the post route:

<form method="post" class="form" name="carrier" id="form1" action="/login">
    <div class="row align-items-center">
        <div class="col-auto">
            <label for="s_uname" class="col-form-label">Username</label>
        </div>
        <div class="col-auto">
            <input type="text" class="form-control" id="s_uname" name="s_uname" required="" value="">
        </div>

        <div class="col-auto">
            <label for="s_pw" class="col-form-label">Password</label>
        </div>
        <div class="col-auto">
            <input type="password" class="form-control" id="s_pw" name="s_pw" required="" value="">
        </div>
        
                <input type="hidden" class="form-control" name="s_type" value="carrier">

        <div class="col-auto">
            <button type="submit" id="mybutton1" class="btn btn-primary">Log in</button>
        </div>
    </div>
</form>


post "/login" do
  puts '/login here'
  puts params
  (other logic)
  erb :"account/login"
end

Answer 1

I was using Rack::Lint which was not happy but not reporting anything in the logs. I turned it off and it worked.