Labour was quite upset when the porn block was canceled:
> Labour attacked that announcement as “proof that an important policy issue has descended into utter shambles”.
And in 2013:
> David Cameron must bring in laws to restrict access to internet pornography and stop images of child abuse from being available online, Labour will say today.
> However, Labour is challenging the Government to go further by bringing in new legal protections, including an automatic block on online pornography unless users "opt-in" and a tighter obligation on web companies to weed out images of child abuse.
https://www.telegraph.co.uk/news/politics/labour/10114845/La...