fix test mode modal

app/controllers/webhook_settings_controller.rb

@@ -32,9 +32,13 @@ class WebhookSettingsController < ApplicationController
   def new; end
 
   def create
+    if @webhook_url.url.present?
       @webhook_url.save!
 
       redirect_to settings_webhooks_path, notice: I18n.t('webhook_url_has_been_saved')
+    else
+      redirect_back fallback_location: settings_webhooks_path
+    end
   end
 
   def update

app/views/testing_api_settings/index.html.erb

@@ -8,6 +8,7 @@
       <%= render 'shared/clipboard_copy', icon: 'copy', text: current_user.access_token.token, class: 'base-button', icon_class: 'w-6 h-6 text-white', copy_title: t('copy'), copied_title: t('copied') %>
     </div>
   </div>
+  <% if @webhook_url.new_record? %>
     <%= form_for @webhook_url, url: settings_webhooks_path, method: :post, html: { autocomplete: 'off' }, data: { turbo_frame: :_top } do |f| %>
       <%= f.label :url, 'Webhook URL', class: 'text-sm font-semibold' %>
       <div class="space-y-2 md:flex-nowrap mt-2">
@@ -15,4 +16,13 @@
         <%= f.button button_title(title: t('save'), disabled_with: t('saving')), class: 'base-button w-full' %>
       </div>
     <% end %>
+  <% else %>
+    <%= form_for @webhook_url, url: settings_webhook_path(@webhook_url), method: :put, html: { autocomplete: 'off' }, data: { turbo_frame: :_top } do |f| %>
+      <%= f.label :url, 'Webhook URL', class: 'text-sm font-semibold' %>
+      <div class="space-y-2 md:flex-nowrap mt-2">
+        <%= f.url_field :url, class: 'base-input w-full', placeholder: 'https://example.com/hook', required: true %>
+        <%= f.button button_title(title: t('save'), disabled_with: t('saving')), class: 'base-button w-full' %>
+      </div>
+    <% end %>
+  <% end %>
 <% end %>