A .capx shouldn't be necessary. I've programed it literally as simple and easy as it should be. Only like 2 lines of code. I'm not sure how to post an image.
But my code is:
On left button clicked on (the object) --- > Browser | Go to (the url on YouTube)
----> Browser | Request full screen | Centered
It's that simple. Can I not play YouTube videos in the window it creates? Keep in mind that this window is not a normal browser like Firefox or Chrome. It's a window made from the export (the application) itself. This might be why it doesn't work. But there seems to be no option for changing it to Firefox or Chrome.
The whole point in linking to a video (as opposed to the video being in the file itself) is to help prevent the exported file (the application) from getting too large.
I'm not sure what you mean by "browser error console".