These are chat archives for UniversalViewer/universalviewer
I can reproduce this:
"The best strategy to avoid mixed content blocking is to serve all the content as HTTPS instead of HTTP."
There are two options I suppose. The first is that you change the page hosting the UV to http (I'm assuming this is not desirable/possible), the second is to get the institution hosting the manifests to change all of their content and resource identifiers to https, which is probably what everyone should be doing by default. I think the scope of this is bigger than the UV and more relevant to the IIIF-discuss group:
If you like I can ask a question on there for you?
this is working for me: