Add support for HTTP2

[xPaw]

With this module you can create HTTP2 / SPDY servers in node.js with natural http module interface and fallback to regular https (for browsers that don't support neither HTTP2, nor SPDY yet).

http2 module does not work with Express. Closes #173.

[astorije]

FYI, Google has deprecated SPDY and will completely drop it this year. I understand this package is not affiliated to Google, but it might be worth looking at consequences a bit more.

[xPaw]

Yeah, but from the look of things, the package isn't going anywhere and supports HTTP2 just fine.

[astorije]

@xPaw, I'll try to take a look at this over the week-end.

[maxpoulin64]

Seems to be working just fine, 👍

Note: needs to be served over SSL for Chrome to use HTTP/2. Took me a short while before I got it working because of that, so HTTP/1.1 also works just fine still.

[xPaw]

@maxpoulin64 Correct, HTTP2 is TLS only by design (of the protocol).

[astorije]

FYI, I have been reading this article which covers HTTP/2 with this package, good read if someone wants to know more about it.

Yeah, but from the look of things, the package isn't going anywhere and supports HTTP2 just fine.

Indeed:

Whilst spdy is being deprecated, node-spdy has a fantastic API and full support for HTTP/2 and fallback to HTTPS, so there is currently no reason not to use it in production.

I noted the following too, that I could read in different places:

It’s worth noting, Express 5.0 will eventually have HTTP/2 support out the box, although there is uncertainty within the community as to when Express 5.0 will be released [...]

So we're not there yet, but someday we'll be able to simply rely on Express to deal with it on its own, pretty cool!

@maxpoulin64 Correct, HTTP2 is TLS only by design (of the protocol).

Not quite, they ended up adding non-HTTPS support to HTTP/2 in the end, to please folks who were against having an HTTPS-only protocol. HTTPS is however the default, and apparently it's a pain to set up non-HTTPS for HTTP/2, and lots of clients would not support it anyway...

So in a nutshell, very nice to have The Lounge serving HTTP/2 pages by default when you enable HTTPS!
👍 and merging.