Restored polling whether Papaya loaded.

frontend/src/js/page/wb-image-viewer-page.js

@@ -45,7 +45,7 @@ function downloadFile(arvHost, arvToken, file) {
     const poll = () => {
       setTimeout(() => {
         console.log('Polling Papaya startup...')
-        if (true) { // window.papayaContainers && window.papayaContainers[0]) {
+        if (window.papaya && window.papaya.Container) { // window.papayaContainers && window.papayaContainers[0]) {
           console.log('Great, Papaya started!');
           papaya.Container.startPapaya();
           //papaya.Container.addImage(0, big.buffer);