change /start to post

app/controllers/rooms_controller.rb

@@ -61,7 +61,7 @@ class RoomsController < ApplicationController
     redirect_to current_user.main_room
   end
 
-  # GET /r/:room_uid/start
+  # POST /r/:room_uid/start
   def start
     # Join the user in and start the meeting.
     opts = default_meeting_options

app/views/rooms/show.html.erb

@@ -28,9 +28,9 @@
       </div>
       <div class="col-lg-3 col-sm-12 bottom-div mt-5">
         <% if @is_running %>
-          <div class="btn btn-success active btn-block px-7 start-button float-right">In Progress</div>
+          <div class="btn btn-success btn-block px-7 start-button float-right">In Progress</div>
         <% else %>
-          <%= link_to "Start", start_room_path(@room), class: "btn btn-primary btn-block px-7 start-button float-right" %>
+          <%= button_to "Start", start_room_path(@room), class: "btn btn-primary btn-block px-7 start-button float-right" %>
         <% end %>
       </div>
     </div>

config/routes.rb

@@ -6,7 +6,7 @@ Rails.application.routes.draw do
   # Extended room routes.
   scope '/r/:room_uid' do
     post '/', to: 'rooms#join'
-    get '/start', to: 'rooms#start', as: :start_room
+    post '/start', to: 'rooms#start', as: :start_room
     get '/logout', to: 'rooms#logout', as: :logout_room
     post '/home', to: 'rooms#home', as: :make_home