افزودن لودینگ

frontend/viewer.js

@@ -46,6 +46,7 @@ async function start() {
   viewport.append(svg);
   await document.fonts.ready;
   viewport.style.backgroundColor = background;
+  state.classList.remove('loading');
   state.textContent = '';
   paint();
   viewport.addEventListener('wheel', e => {
@@ -93,4 +94,7 @@ async function start() {
   }
   expire();
 }
-start().catch(e => { if (e.name !== 'AbortError') state.textContent = e.message; });
+start().catch(e => {
+  state.classList.remove('loading');
+  state.textContent = e.name === 'AbortError' ? '' : e.message;
+});