Summary
Acunetix 360 detected that the nonce value declared in CSP is not within single quotes.
Impact
When nonce value is not used within single quotes, it will be considered as a part of the resource URL. This will cause relevant script block to not run.
Remediation
Use nonce values within single quotes, i.e.
Content-Security-Policy: script-src 'nonce-EDNnf03nceIOfn39fn3e9h3sdfa';