I found a great social button to subscribe to a youtube channel and I want to use that for my youtube apps.
However I get an js error and the problem is I cannot find any info about this iframe button to resolve this. I probally have to add more after channel=
It looks like something from plusone.js (google)
Hope someone can shine a light where to get more info about this social button
cfconsultancy is my channel name so to test it for yourself change to any channel name you like