Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.
Enabling HTTPs on custom domain on Azure CDN from Edgio has undergone maintenance on June 20, 2024. This feature will be unavailable during this time and will be available again in early 2025.
I understand this must be challenging, however, from the docs the ETA is early 2025.
The alternatives available at present would be to either
- Consider using a non-apex domain (such as "www")
- or Consider migrating to Azure CDN which supports enabling HTTPS
Please let us know if we can be of any further assistance here.
Thanks,
Kapil