CSP Problem with "nonce"

I have a Content Security Policy with the following:
script-src ‘self’ ‘nonce-%{UNIQUE_ID}e’;
When I try and Export subscribers with the CSP, it fails, when I disable the CSP it works as normal…I presume it’s the “nonce”.
Is there any way of fixing this without eliminating the nonce tag?
There also may be other quirks in phplist with the CSP?