Update Dockerfile-serve #935
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Tightened CSP and added 2 new security headers. CSP New rule: default-src 'none'; script-src 'self'; img-src 'self' data:; style-src 'self' 'sha256-47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=';font-src 'self';connect-src 'self' faucet.decred.org explorer.dcrdata.org testnet.dcrdata.org testnet.decred.org mainnet.decred.org;manifest-src 'self'; object-src 'none'; 1.By default allow none 2.Script allow "self" 3.Images allow "self" and "data:" (used in proposals) 4.Styles (CSS) allow "self" and one whitelisted inline CSS. 5.Font allow "self" 6.Connect allow "self" ; faucet.decred.org ; explorer.dcrdata.org ; testnet.dcrdata.org ; testnet.decred.org ; mainnet.decred.org 7.Manifest allow "self" 8. Object set to "none" New Security Headers: Header set X-Content-Type-Options "nosniff" ==> fixes a chrome and IE specific issue. https://scotthelme.co.uk/hardening-your-http-response-headers/ look under "X-Content-Type-Options" Header set Referrer-Policy "same-origin" ==> Defines that "referrer" value should only be given in "same-origin" requests. (https://scotthelme.co.uk/a-new-security-header-referrer-policy/)
This was referenced Apr 17, 2019
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Tightened CSP and added 2 new security headers.
CSP New rule: default-src 'none'; script-src 'self'; img-src 'self' data:; style-src 'self' 'sha256-47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=';font-src 'self';connect-src 'self' faucet.decred.org explorer.dcrdata.org testnet.dcrdata.org testnet.decred.org mainnet.decred.org;manifest-src 'self'; object-src 'none';
1.By default allow none
2.Script allow "self"
3.Images allow "self" and "data:" (used in proposals)
4.Styles (CSS) allow "self" and one whitelisted inline CSS.
5.Font allow "self"
6.Connect allow "self" ; faucet.decred.org ; explorer.dcrdata.org ; testnet.dcrdata.org ; testnet.decred.org ; mainnet.decred.org
7.Manifest allow "self"
8. Object set to "none"
New Security Headers:
Header set X-Content-Type-Options "nosniff" ==> fixes a chrome and IE specific issue. https://scotthelme.co.uk/hardening-your-http-response-headers/ look under "X-Content-Type-Options"
Header set Referrer-Policy "same-origin" ==> Defines that "referrer" value should only be given in "same-origin" requests. (https://scotthelme.co.uk/a-new-security-header-referrer-policy/)