https://www.techdirt.com/articles/20180720/10274640277/senators-wyden-rubio-ask-google-amazon-to-bring-back-domain-fronting.shtml

Earlier this year we wrote about the bad decisions by both Google and Amazon to end domain fronting. Domain fronting was a (somewhat accidental) way in which services could effectively hide certain traffic to make it quite difficult for, say, authoritarian regimes in Iran or China to block the traffic. For that reason, domain fronting was an important tool in keeping services like Signal's encrypted communications platform working for activists and dissidents in such places.

Amazon and Google claimed that they never intended to allow domain fronting, and that while it helped those services work in such places it might also lead to much broader blocks by those countries trying to get at the fronted communications. Now, in an interesting move, Senators Ron Wyden and Marco Rubio have sent both companies a letter asking them to reconsider.