It would be good to serve http://future.islandora.ca/ as HTTPS, perhaps via a Let's Encrypt certificate. Then it would be possible to serve content such as http://future.islandora.ca/node/20/manifest to IIIF viewers such as https://ddmal.music.mcgill.ca/diva.js/try/iiif-external.html without it being blocked as "Mixed content"
diva.js:8 Mixed Content: The page at 'https://ddmal.music.mcgill.ca/diva.js/try/iiif-external.html' was loaded over HTTPS, but requested an insecure resource 'http://future.islandora.ca/node/20/manifest'. This request has been blocked; the content must be served over HTTPS.
It would be good to serve http://future.islandora.ca/ as HTTPS, perhaps via a Let's Encrypt certificate. Then it would be possible to serve content such as http://future.islandora.ca/node/20/manifest to IIIF viewers such as https://ddmal.music.mcgill.ca/diva.js/try/iiif-external.html without it being blocked as "Mixed content"
diva.js:8 Mixed Content: The page at 'https://ddmal.music.mcgill.ca/diva.js/try/iiif-external.html' was loaded over HTTPS, but requested an insecure resource 'http://future.islandora.ca/node/20/manifest'. This request has been blocked; the content must be served over HTTPS.