Add manifest-src to CSP to fix browser complaints
As the default-src
is set to 'none'
, currently browsers that support
CSPv3 will block requests to the favicon manifest. This patch should fix
this error by adding a proper definition for the manifest-src and this
way solve the issue the browser has with the current CSP.
References: https://content-security-policy.com/ https://www.w3.org/TR/CSP3/#changes-from-level-2 https://www.w3.org/TR/CSP3/#directive-manifest-src