Any reason not to add “Cache-Control: no-transform” header to every page?

Question

We have recently fixed a nagging error on our website similar to the one described in How to stop javascript injection from vodafone proxy? - basically, the Vodafone mobile netw

Answer 1

Google has recently incorporated the service googleweblight so if your pages has the "Cache-Control: no-transform" header directive you'll be opting-out from transcoding your page in case the connection comes from a mobile device with slow internet connection.

More info here: https://support.google.com/webmasters/answer/6211428?hl=en