Dear team, how can i open the osimis viewer programatically adding the user/password when the server requires authentication?
This to avoid to enter the username/password manually.
Thanks in advance.
Well, it’s just basic HTTP auth so you can pass the login/pwd in the url: http://username:password@example.com/
Usually, at this time, you realize that you just don’t need authentication if you try to bypass it 
Actually we can’t rely on passing basic auth in the URL as most modern browsers will block it.
In version 1.3.0.0 Osimis had a change regarding this question:
Query arguments (i.e ?token=1234) are passed as HTTP Headers of every request that is sent to Orthanc easing the integration with the orthanc-authorization plugin
But Osimis 1.4.2 doesn’t pass an authorization url parameter as a header to Orthanc. Is there a way to add custom headers to Osimis requests?
The Osimis Web viewer is not maintained anymore:
https://www.orthanc-server.com/static.php?page=osimis-web-viewer
But its source code is available as open-source software licensed under the AGPL license, so feel free to adapt the code to your needs and publicly share your modifications:
https://bitbucket.org/osimis/osimis-webviewer-plugin/src/master/