website: optionally point to companion with graph instagram API

website/src/examples/transloadit/app.es6

@@ -83,6 +83,18 @@ function initUppy (opts = {}) {
     return { params, signature }
   }
 
+  let instagramOptions = {
+    target: Dashboard,
+    companionUrl: 'https://api2.transloadit.com/companion',
+    companionAllowedHosts: Transloadit.COMPANION_PATTERN
+  }
+  if (document.location.hash === '#enable-new-instagram') {
+    instagramOptions = {
+      target: Dashboard,
+      companionUrl: 'https://intense-meadow-61813.herokuapp.com/'
+    }
+  }
+
   uppy
     .use(Transloadit, {
       getAssemblyOptions,
@@ -94,11 +106,7 @@ function initUppy (opts = {}) {
       target: '#uppy-dashboard-container',
       note: 'Images only, 1–2 files, up to 1 MB'
     })
-    .use(Instagram, {
-      target: Dashboard,
-      companionUrl: 'https://api2.transloadit.com/companion',
-      companionAllowedHosts: Transloadit.COMPANION_PATTERN
-    })
+    .use(Instagram, instagramOptions)
     .use(Facebook, {
       target: Dashboard,
       companionUrl: COMPANION