Isn't that because they ask you to sign in if you're not leaking enough information?
The "open in YouTube" button just does nothing in the (iOS) webview, for whatever reason. So, in order to get a working open-in-app button, you have to open the webpage in your browser. Not sure if intentional or a bug.
alt Hacker News
The "open in YouTube" button just does nothing in the (iOS) webview, for whatever reason. So, in order to get a working open-in-app button, you have to open the webpage in your browser. Not sure if intentional or a bug.