nginx - http2.0 is so good, why is it not used by big websites now?

Question

As the title states, I now want to configure nginx with http 2.0, but I don’t know if it will cause bad problems. I mainly want to solve the problem of website browser restrictions on the same domain name and improve concurrent access.

Answer 1

We have to wait until browsers that support http 2 occupy most of the market.

Mobile phones are so powerful, they would have been useless back in ancient times because they didn’t have to be charged.

Until the infrastructure is ready, everything can only wait.