LinkedIn with VoiceOver?

Hi everybody. Subject line is pretty accurate. A few days ago I set up a new account on LinkedIn to see if a former coworker was still on there. I was unable for some reason to do this before, but it worked and I got an email notification that he accepted my invite. However, I attempted to message him and ran into trouble. I typed in his email and the subject of the message, then the body. The send button was dimmed, and despite being told by VoiceOver that I could optionally hit Enter to send that didn't work either. So I just closed out of my session and will try again. But have any of you VoiceOver users had experience with LinkedIn, and if so how was it? Tia for any assistance with this.