[BitBucket user: Sébastien Jodogne]
[BitBucket date: 2019-01-20.16:46:12]

Michael, regarding the technical aspect, my claim was that it is not possible to do this in a purely cross-browser fashion (my first answer above from January 2016 was indeed a leap), and that this is not considered as a priority for Orthanc Explorer. We would of course be grateful if you could propose an Orthanc plugin that solves this issue, given the fact that you are are familiar with Web development.

To take this issue tracker as technical as possible, I answered the "Secondly" part of your post on the dedicated forum:  https://groups.google.com/d/msg/orthanc-users/avsgtjnejbo/zWGriaxeEwAJ