The Atlassian Community can help you and your team get more value out of Atlassian products and practices.
Client site suddenly getting the message above and we are able to duplicate the same issue in our development environment. Have tried a number of things to try to get past it, but no luck so far. Hasn't something changed? Is HTTP 1.1 protocol no longer available? Snippet from a trace is below. Connecting to Trello via a desktop program that has been in production and in active use for a long time now. Using Nov. 2018 openSSL DLL files. Tried using only TSL 1_2 as suggested by a 2019 post which we were already supporting but still receiving the same response.
Trace file snippet:
HTTP/1.1 426 Upgrade Required<EOL>Date: Thu, 20 Aug 2020 18:07:35 GMT<EOL>Server: globaledge-envoy
I confirm that forcing HTTP 1.1 also solve my problem. Thx for the hint.
HTTP 1.0 has been removed.
> Is HTTP 1.1 protocol no longer available?
HTTP 1.1 will continue to be supported for the foreseeable future.
Congratulations to @Laura Holton , our latest winner of Taco Tuesday! And thanks to @Kristján Geir Mathiesen for sharing the picture of Taco having fun with his new friend B...
Connect with like-minded Atlassian users at free events near you!
Find an eventConnect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.
Host an eventYou're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events