Support HTTP/2

[gboone]

Like #1871 this is a limitation of our platform, and there's not much we can do about it without action from Cloudfront first.

HTTP/2 has significant performance and security advantages over HTTP/1.1. We supported it before we switched to Federalist and we should support it again as soon as we're able.

[gboone]

Tremendous development from Amazon on this front today.

[gemfarmer]

@wslack @jmhooper is this issue solved with the new GovCloud migration?

cc @coreycaitlin @gboone

[jmhooper]

Just checked and it looks like it is resolved.

$ curl --http2 -I https://18f.gsa.gov
HTTP/2 200 
content-type: text/html; charset=utf-8
cache-control: max-age=60
date: Wed, 15 Feb 2017 19:17:56 GMT
etag: W/"b84acb87f584b824836d0e535b815339"
last-modified: Tue, 14 Feb 2017 21:22:31 GMT
server: nginx
strict-transport-security: max-age=31536000
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-vcap-request-id: c035097d-3406-457a-7e64-e71b1093d6f1
x-xss-protection: 1; mode=block
vary: Accept-Encoding

[gemfarmer]

Thanks @jmhooper! Closing!