What issues are you seeing, and which device is this on? (I have no problem loading the page, searching the ontology and dataset pages, and playing videos on iPhone 4 and 5s)
"A problem occurred with this webpage so it was reloaded."
The page can be seen below, but no interaction is possible, because the page is in the middle of a redirect/refresh/reload.
The reload finishes, and the same error appears again, a few times. And then Safari gives up, with a blank background and a message in the center that says:
A problem repeatedly occurred on "https://research.google.com/audioset/index.html".