line 52. this is in /views/html/checkout/lite

lite.html

<!-- rootElement for the Ember application -->
<div id="checkoutApplication">
  <div class="checkout-application-loading loading-spinner">
    <div class="loading-icon"></div>
    <p class="loading-message">{{__ 'loading'}}</p>
  </div>  
</div>

{{handlebarsTemplate assets.views.checkout.lite name="application"}}

{{handlebarsTemplate assets.views.checkout.lite.navigation name="navigation"}}
{{handlebarsTemplate assets.views.checkout.lite.login name="login"}}
{{handlebarsTemplate assets.views.checkout.lite.summary name="orderSummary"}}

{{handlebarsTemplate assets.views.checkout.lite.addresses name="addresses"}}
{{handlebarsTemplate assets.views.checkout.lite.addresses.billing name="billingAddress"}}
{{handlebarsTemplate assets.views.checkout.lite.addresses.shipping name="shippingAddress"}}

{{handlebarsTemplate assets.views.checkout.lite.payment name="payment"}}
{{handlebarsTemplate assets.views.checkout.lite.payment.cc name="_PM_creditCard"}}
{{handlebarsTemplate assets.views.checkout.lite.payment.paypal name="_PM_payPal"}}
{{handlebarsTemplate assets.views.checkout.lite.payment.google name="_PM_googleWallet"}}
{{handlebarsTemplate assets.views.checkout.lite.payment.location name="autofillLocation"}}
{{handlebarsTemplate assets.views.checkout.lite.payment.ccinput name="creditCardInput"}}
{{handlebarsTemplate assets.views.checkout.lite.payment.promo_code name="promoCode"}}

{{handlebarsTemplate assets.views.checkout.lite.confirm name="confirm"}}
{{handlebarsTemplate assets.views.checkout.lite.shipping_methods name="shippingMethods"}}

{{handlebarsTemplate assets.views.checkout.lite.receipt name="receipt"}}

{{handlebarsTemplate "checkout/lite/_cvv_modal" name="cvv"}}

{{handlebarsTemplate assets.views.checkout.lite.loading.modal name="loading"}}
{{handlebarsTemplate assets.views.checkout.lite.loading.content name="_contentLoading"}}

<!-- Checkout application scripts -->
{{CDN src="/javascript/ember.js,
           /javascript/i18next-1.6.3.min.js,
           /javascript/ember-validations.js,
           /javascript/checkouts/lite/main.js,
           /javascript/checkouts/lite/config.js,
           /javascript/checkouts/lite/routes.js,
           /javascript/checkouts/lite/controllers.js,
           /javascript/checkouts/lite/foot_controllers.js,
           /javascript/checkouts/lite/views.js,
           /javascript/checkouts/lite/models.js,
           /javascript/checkouts/lite/foot_models.js,
           /javascript/checkouts/lite/api.js,
           /javascript/checkouts/lite/helpers.js,
           /javascript/checkouts/lite/analytics.js,
           /javascript/checkouts/lite/foot_analytics.js,
           /javascript/checkouts/lite/i18n.js"}}

line 52