diff --git a/addons/api/mirage/config.js b/addons/api/mirage/config.js
index cc8712d4b..d6b519784 100644
--- a/addons/api/mirage/config.js
+++ b/addons/api/mirage/config.js
@@ -33,6 +33,7 @@ export default function (mirageConfig) {
 function routes() {
   initializeMockIPC(this, environmentConfig);
 
+  this.passthrough();
   // make this `http://localhost:8080`, for example, if your API is on a different server
   // this.urlPrefix = '';
   // make this `/api`, for example, if your API is namespaced
diff --git a/ui/admin/app/routes/scopes/scope/session-recordings/session-recording/channels-by-connection/channel.js b/ui/admin/app/routes/scopes/scope/session-recordings/session-recording/channels-by-connection/channel.js
index 2765d6c69..494ee45e6 100644
--- a/ui/admin/app/routes/scopes/scope/session-recordings/session-recording/channels-by-connection/channel.js
+++ b/ui/admin/app/routes/scopes/scope/session-recordings/session-recording/channels-by-connection/channel.js
@@ -2,24 +2,9 @@ import Route from '@ember/routing/route';
 
 export default class ScopesScopeSessionRecordingsSessionRecordingChannelsByConnectionChannelRoute extends Route {
   async model() {
-    // building ascii cast here to make player availabe until API is ready
-    const castConfig = {
-      version: 2,
-      width: 124,
-      height: 36,
-      timestamp: 1670352594,
-      env: { SHELL: '/bin/zsh', TERM: 'xterm-256color' },
-    };
-    const asciicast = `${JSON.stringify(castConfig)}
-[2.676444, "o", "y"]
-[2.788653, "o", "a"]
-[2.868652, "o", "r"]
-[3.001764, "o", "n"]
-[3.167636, "o", " "]
-[3.313668, "o", "t"]
-[3.460527, "o", "e"]
-[3.561983, "o", "s"]
-[3.63678, "o", "t"]`;
+    const response = await fetch('/session.cast');
+    const asciicast = await response.text();
+
     return {
       scope_id: 'srcc_1234567890',
       asciicast: asciicast,