Some Fingerprint Protection settings do not stick for some websites

[IndigoJay]

Using Office 365 Office Apps online (word/excel/powerpoint in browser)

My document is hosted at https://example.sharepoint.com/...

I allow word-edit.officeapps.live.com for the Fingerprint Protection with:
"Canvas Font Access", Browser Plugin Enumeration", and "Clipboard Interference"

The allow does not stick after the page reloads.

I tried whitelisting the pages at ScriptSafe Settings, Fingerprint Protection, add the domain to Whitelisting (word-edit.officeapps.live.com, **.officeapps.live.com, **.live.com).

However the protection remains enabled, and the features blocked. Unfortunately this means I must disable ScriptSafe while I work.

[Asakapaaaa]

How to prevent the font fingerprinting?