Tsugi Support for User-Agent in Web Service Calls to Canvas

[Chuck Severance]

Hi all,

You may not have heard about this yet but Canvas is enforcing User Agents for API requests on January 17, 2026.

I will have a Tsugi update for this pretty soon and after I test it, I will announce it on this list.

If you are on an earlier branch - the fix should be small and easily back-ported to branches - so check if you are using master or a branch and let me know if you are on aback-level branch and need this fix.

Hope all is well.

/Chuck

[Chris Filkins]

Hi Chuck, and Happy Holidays!

We just wanted to check in on the progress towards addressing this Canvas issue.  I hadn't realized that it would also impact LTI tools :(  I don't think we'll be able to fully upgrade, but plan on backporting.  Thanks!

-Chris 

[Charles Severance]

Clint,

Here is the commit for User-Agent

https://github.com/tsugiproject/tsugi/commit/cd3548149e67275a866fcbefa19a292211bc1f5b

It is really just two files and the changes should be easy to back port.

This is running in my production servers and working fine.

Let me know if it works for you or if you need anything else.

/Chuck

On Dec 2, 2025, at 1:46 PM, Chris Filkins <cfil...@gmail.com> wrote:

Hi Chuck, and Happy Holidays!

We just wanted to check in on the progress towards addressing this Canvas issue.  I hadn't realized that it would also impact LTI tools :(  I don't think we'll be able to fully upgrade, but plan on backporting.  Thanks!

-Chris 

On Wednesday, November 12, 2025 at 12:14:39 PM UTC-5 cs...@umich.edu wrote:

Hi all,

You may not have heard about this yet but  on January 17, 2026.