mlc Checks to Dockerhub return a 406

When we check links to https://hub.docker.com/r/<...> we get a 406 - Not Acceptable even though the links exist and work fine.

Jul 04 '24 12:07 EagleoutIce

@EagleoutIce can you give me one example URL with /r? I guess the 406 means that the HEAD and later GET request is not accepted by the endpoint.

Jul 05 '24 06:07 becheran

Sure! Specifically for us, https://hub.docker.com/r/eagleoutice/flowr fails.

Jul 05 '24 06:07 EagleoutIce

@EagleoutIce I am not able to reproduce the issue. I added [foo](https://hub.docker.com/r/eagleoutice/flowr) in a markdown file and mlc did not detect any error:

[ OK ] .\README.md:3:1 => https://hub.docker.com/r/eagleoutice/flowr -

Jul 20 '24 19:07 becheran

Yes, thank you very much for checking, it appears that the problem vanished automagically.

Jul 23 '24 10:07 EagleoutIce

Ok, maybe this is a flakey github-actions issue, but we got the error again (https://github.com/flowr-analysis/flowr/actions/runs/10059706810/job/27805541854?pr=868#step:10:371)

Jul 23 '24 13:07 EagleoutIce

I also encountered this issue now from time to time. Not sure if you are still using mlc. If you do, you could give version 0.20.0 a try. I am not fully sure if it is the case, but I have the feeling that changing the accept header in the request helped to elimitate the sporadic failure. But since it only happended sporadically I am still not 100% sure. Please re-open if it is still failing sometimes.

Feb 08 '25 21:02 becheran