heres a live link. And paper. Sorry I'm on mobile.
FWIW, they are sending observation sequences marked up as some custom JS, and an onboard interpreter will turn those into C&DH sequences and spool them out.
That decision seems arbitrary, given most onboard executives use a ... more standardized markup lang for sequences.
https://www.google.com/url?q=http://www.stsci.edu/~idash/pub...
https://mobile.twitter.com/alteredq/status/80085890885198233...