Right On Meaning

(Britain, often pejorative) Possessing political and social views that are considered to be fashionable and left-wing.

Example: 2014 October 23, Pitel, Laura, “Charity refuses money from Ukip calypso song”, The Times, number 71335, page 2:
  Ukip said that it was saddened that "synthetic outrage" from the "right-on media" had forced Read to withdraw the single and announced that the full profits would be donated to the Red Cross Ebola Outreach programme.