@font-face failed OpenType embedding permission check. Permission must be Installable

Question

This exception occurs in here. You can reproduce it in IE11. So far I have not found the cause of the issue. Any ideas why this is being caused?

Answer 1

Another solution can be change the Font embeddability property file. Right click and see Details tab:

If this property does not appear, you can use this service to add it. It only works for .ttf font files. But I guess there are some other services to change other font file extensions.