I noticed the https://pontoon.mozilla.org/ still uses HTTP/1.1. Its connections performance is low, and may be lower since bug 1340655.
Seems like Heroku doesn't allow us to do this: https://devcenter.heroku.com/articles/http-routing#http-versions-supported
(In reply to Matjaz Horvat [:mathjazz] from comment #1) > Seems like Heroku doesn't allow us to do this: > https://devcenter.heroku.com/articles/http-routing#http-versions-supported You are right, I once had wanted to suggest and found the page. I mistake thinking the site hosting at Amazon AWS, due to elb067200-124977979.us-east-1.elb.amazonaws.com in DNS name.
Resolving as Wontfix.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 2 years ago
Resolution: --- → WONTFIX
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