Basic authentication is not working anymore

Hi, I had Grafana 4.6.2 with basic authentication working and using URLs like:

http://user:pass@host/path_to_the_dashboard

everything worked very well. But yesterday something changed and I don’t know what changed, maybe my docker container pulled a new version of Grafana or something else but everything seems equal like always.

Currently, when I load URLs like the previous one I’m redirected to the login page with a 302 HTTP code. I set logs with debug level but there is no useful information there about the reason why it is happening that behavior now.

Ideas will be welcome, thanks.

Oriol Rius