adding CSP, no-referrer policies and allow dns prefetching

server.ts

@@ -52,7 +52,25 @@ app.set('trust proxy', CONFIG.TRUST_PROXY)
 // Security middlewares
 app.use(helmet({
   frameguard: {
-    action: 'deny'
+    action: 'deny' // we only allow it for /videos/embed, see server/controllers/client.ts
+  },
+  dnsPrefetchControl: {
+    allow: true
+  },
+  contentSecurityPolicy: {
+    directives: {
+      fontSrc: ["'self'"],
+      frameSrc: ["'none'"],
+      mediaSrc: ['*', 'https:'],
+      objectSrc: ["'none'"],
+      scriptSrc: ["'self'"],
+      styleSrc: ["'self'"],
+      upgradeInsecureRequests: true
+    },
+    browserSniff: false // assumes a modern browser, but allows CDN in front
+  },
+  referrerPolicy: {
+    policy: 'strict-origin-when-cross-origin'
   }
 }))
 

yarn.lock

@@ -2731,12 +2731,6 @@ gaze@^1.0.0, gaze@^1.1.0:
   dependencies:
     globule "^1.0.0"
 
-gaze@~0.5.1:
-  version "0.5.2"
-  resolved "https://registry.yarnpkg.com/gaze/-/gaze-0.5.2.tgz#40b709537d24d1d45767db5a908689dfe69ac44f"
-  dependencies:
-    globule "~0.1.0"
-
 generate-function@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.0.0.tgz#6858fe7c0969b7d4e9093337647ac79f60dfbe74"
@@ -2897,14 +2891,6 @@ globule@^1.0.0:
     lodash "~4.17.10"
     minimatch "~3.0.2"
 
-globule@~0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/globule/-/globule-0.1.0.tgz#d9c8edde1da79d125a151b79533b978676346ae5"
-  dependencies:
-    glob "~3.1.21"
-    lodash "~1.0.1"
-    minimatch "~0.2.11"
-
 gonzales-pe-sl@^4.2.3:
   version "4.2.3"
   resolved "https://registry.yarnpkg.com/gonzales-pe-sl/-/gonzales-pe-sl-4.2.3.tgz#6a868bc380645f141feeb042c6f97fcc71b59fe6"
@@ -2931,10 +2917,6 @@ graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
-graceful-fs@~1.2.0:
-  version "1.2.3"
-  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-1.2.3.tgz#15a4806a57547cb2d2dbf27f42e89a8c3451b364"
-
 graceful-fs@~2.0.2:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-2.0.3.tgz#7cd2cdb228a4a3f36e95efa6cc142de7d1a136d0"
@@ -3153,15 +3135,6 @@ har-schema@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-2.0.0.tgz#a94c2224ebcac04782a0d9035521f24735b7ec92"
 
-har-validator@~2.0.6:
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-2.0.6.tgz#cdcbc08188265ad119b6a5a7c8ab70eecfb5d27d"
-  dependencies:
-    chalk "^1.1.1"
-    commander "^2.9.0"
-    is-my-json-valid "^2.12.4"
-    pinkie-promise "^2.0.0"
-
 har-validator@~4.2.1:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-4.2.1.tgz#33481d0f1bbff600dd203d75812a6a5fba002e2a"
@@ -3176,12 +3149,6 @@ har-validator@~5.0.3:
     ajv "^5.1.0"
     har-schema "^2.0.0"
 
-has-ansi@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/has-ansi/-/has-ansi-0.1.0.tgz#84f265aae8c0e6a88a12d7022894b7568894c62e"
-  dependencies:
-    ansi-regex "^0.2.0"
-
 has-ansi@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/has-ansi/-/has-ansi-2.0.0.tgz#34f5049ce1ecdf2b0649af3ef24e45ed35416d91"
@@ -3316,6 +3283,14 @@ hosted-git-info@^2.1.4:
   version "2.7.1"
   resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.7.1.tgz#97f236977bd6e125408930ff6de3eec6281ec047"
 
+hpkp@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/hpkp/-/hpkp-2.0.0.tgz#10e142264e76215a5d30c44ec43de64dee6d1672"
+
+hsts@2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/hsts/-/hsts-2.1.0.tgz#cbd6c918a2385fee1dd5680bfb2b3a194c0121cc"
+
 htmlparser2@3.8.x, htmlparser2@~3.8.1:
   version "3.8.3"
   resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.8.3.tgz#996c28b191516a8be86501a7d79757e5c70c1068"
@@ -3335,16 +3310,6 @@ htmlparser2@~3.5.0:
     domutils "1.3"
     readable-stream "1.1"
 
-htmlparser2@~3.8.1:
-  version "3.8.3"
-  resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.8.3.tgz#996c28b191516a8be86501a7d79757e5c70c1068"
-  dependencies:
-    domelementtype "1"
-    domhandler "2.3"
-    domutils "1.5"
-    entities "1.0"
-    readable-stream "1.1"
-
 http-basic@^2.5.1:
   version "2.5.1"
   resolved "https://registry.yarnpkg.com/http-basic/-/http-basic-2.5.1.tgz#8ce447bdb5b6c577f8a63e3fa78056ec4bb4dbfb"
@@ -3435,10 +3400,6 @@ iconv-lite@0.4.23, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
-iconv-lite@~0.2.11:
-  version "0.2.11"
-  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.2.11.tgz#1ce60a3a57864a292d1321ff4609ca4bb965adc8"
-
 ienoopen@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/ienoopen/-/ienoopen-1.0.0.tgz#346a428f474aac8f50cf3784ea2d0f16f62bda6b"
@@ -5575,6 +5536,10 @@ pkginfo@0.x.x:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/pkginfo/-/pkginfo-0.4.1.tgz#b5418ef0439de5425fc4995042dced14fb2a84ff"
 
+platform@1.3.5:
+  version "1.3.5"
+  resolved "https://registry.yarnpkg.com/platform/-/platform-1.3.5.tgz#fb6958c696e07e2918d2eeda0f0bc9448d733444"
+
 please-upgrade-node@^3.0.2, please-upgrade-node@^3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/please-upgrade-node/-/please-upgrade-node-3.1.1.tgz#ed320051dfcc5024fae696712c8288993595e8ac"
@@ -5788,14 +5753,6 @@ qs@6.5.2, qs@^6.1.0, qs@^6.4.0, qs@^6.5.1, qs@~6.5.1:
   version "6.5.2"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
 
-qs@~0.5.2:
-  version "0.5.6"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-0.5.6.tgz#31b1ad058567651c526921506b9a8793911a0384"
-
-qs@~6.3.0:
-  version "6.3.2"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.3.2.tgz#e75bd5f6e268122a2a0e0bda630b2550c166502c"
-
 qs@~6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
@@ -6198,10 +6155,6 @@ rimraf@2, rimraf@2.x.x, rimraf@^2.2.8, rimraf@^2.4.2, rimraf@^2.5.1, rimraf@^2.5
   dependencies:
     glob "^7.0.5"
 
-rimraf@~2.2.8:
-  version "2.2.8"
-  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.2.8.tgz#e439be2aaee327321952730f99a8929e4fc50582"
-
 run-async@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/run-async/-/run-async-0.1.0.tgz#c8ad4a5e110661e402a7d21b530e009f25f8e389"
@@ -6518,10 +6471,6 @@ shimmer@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/shimmer/-/shimmer-1.2.0.tgz#f966f7555789763e74d8841193685a5e78736665"
 
-sigmund@~1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/sigmund/-/sigmund-1.0.1.tgz#3ff21f198cad2175f9f3b781853fd94d0d19b590"
-
 signal-exit@^3.0.0, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
@@ -6987,12 +6936,6 @@ stringstream@~0.0.4:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.6.tgz#7880225b0d4ad10e30927d167a1d6f2fd3b33a72"
 
-strip-ansi@^0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-0.3.0.tgz#25f48ea22ca79187f3174a4db8759347bb126220"
-  dependencies:
-    ansi-regex "^0.2.1"
-
 strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
@@ -7076,10 +7019,6 @@ supports-color@5.4.0, supports-color@^5.2.0, supports-color@^5.3.0:
   dependencies:
     has-flag "^3.0.0"
 
-supports-color@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-0.2.0.tgz#d92de2694eb3f67323973d7ae3d8b55b4c22190a"
-
 supports-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
@@ -7421,10 +7360,6 @@ tunnel-agent@^0.6.0:
   dependencies:
     safe-buffer "^5.0.1"
 
-tunnel-agent@~0.4.1:
-  version "0.4.3"
-  resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.4.3.tgz#6373db76909fe570e08d73583365ed828a74eeeb"
-
 tv4@~1.2.7:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/tv4/-/tv4-1.2.7.tgz#bd29389afc73ade49ae5f48142b5d544bf68d120"
@@ -7509,10 +7444,6 @@ undefsafe@^2.0.2:
   dependencies:
     debug "^2.2.0"
 
-underscore.string@~2.2.1:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/underscore.string/-/underscore.string-2.2.1.tgz#d7c0fa2af5d5a1a67f4253daee98132e733f0f19"
-
 underscore.string@~2.3.3:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/underscore.string/-/underscore.string-2.3.3.tgz#71c08bf6b428b1133f37e78fa3a21c82f7329b0d"
@@ -7528,10 +7459,6 @@ underscore@^1.7.0:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.9.1.tgz#06dce34a0e68a7babc29b365b8e74b8925203961"
 
-underscore@~1.7.0:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.7.0.tgz#6bbaf0877500d36be34ecaa584e0db9fef035209"
-
 union-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/union-value/-/union-value-1.0.0.tgz#5c71c34cb5bad5dcebe3ea0cd08207ba5aa1aea4"
@@ -7806,10 +7733,6 @@ which@1, which@^1.1.1, which@^1.2.10, which@^1.2.4, which@^1.2.9, which@~1.3.0:
   dependencies:
     isexe "^2.0.0"
 
-which@~1.0.5:
-  version "1.0.9"
-  resolved "https://registry.yarnpkg.com/which/-/which-1.0.9.tgz#460c1da0f810103d0321a9b633af9e575e64486f"
-
 wide-align@^1.1.0:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.3.tgz#ae074e6bdc0c14a431e804e624549c633b000457"