Add polyfill linting

.eslintrc.yml

@@ -22,6 +22,7 @@ extends:
   - plugin:import/errors
   - plugin:import/warnings
   - plugin:eslint-comments/recommended
+  - plugin:compat/recommended
 
 globals:
   # Browser globals

package.json

@@ -18,6 +18,7 @@
     "cssnano": "^4.1.10",
     "del": "^5.1.0",
     "eslint": "^6.8.0",
+    "eslint-plugin-compat": "^3.5.1",
     "eslint-plugin-eslint-comments": "^3.1.2",
     "eslint-plugin-import": "^2.20.2",
     "eslint-plugin-promise": "^4.2.1",

yarn.lock

@@ -710,7 +710,7 @@
     "@babel/types" "^7.4.4"
     esutils "^2.0.2"
 
-"@babel/runtime@^7.8.4", "@babel/runtime@^7.8.7":
+"@babel/runtime@^7.7.7", "@babel/runtime@^7.8.4", "@babel/runtime@^7.8.7":
   version "7.9.2"
   resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.9.2.tgz#d90df0583a3a252f09aaa619665367bae518db06"
   integrity sha512-NE2DtOdufG7R5vnfQUTehdTfNycfUANEtCa9PssN9O/xmTzP4E08UI797ixaei6hBEVL9BI/PsdJS5x7mWoB9Q==
@@ -1471,6 +1471,11 @@ assign-symbols@^1.0.0:
   resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
   integrity sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=
 
+ast-metadata-inferer@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/ast-metadata-inferer/-/ast-metadata-inferer-0.1.1.tgz#66e24fae9d30ca961fac4880b7fc466f09b25165"
+  integrity sha512-hc9w8Qrgg9Lf9iFcZVhNjUnhrd2BBpTlyCnegPVvCe6O0yMrF57a6Cmh7k+xUsfUOMh9wajOL5AsGOBNEyTCcw==
+
 astral-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-1.0.0.tgz#6c8c3fb827dd43ee3918f27b82782ab7658a6fd9"
@@ -1965,6 +1970,16 @@ browserslist@^4.0.0, browserslist@^4.11.0, browserslist@^4.6.4, browserslist@^4.
     node-releases "^1.1.52"
     pkg-up "^3.1.0"
 
+browserslist@^4.8.2:
+  version "4.11.1"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.11.1.tgz#92f855ee88d6e050e7e7311d987992014f1a1f1b"
+  integrity sha512-DCTr3kDrKEYNw6Jb9HFxVLQNaue8z+0ZfRBRjmCunKDEXEBajKDj2Y+Uelg+Pi29OnvaSGwjOsnRyNEkXzHg5g==
+  dependencies:
+    caniuse-lite "^1.0.30001038"
+    electron-to-chromium "^1.3.390"
+    node-releases "^1.1.53"
+    pkg-up "^2.0.0"
+
 bs-recipes@1.3.4:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/bs-recipes/-/bs-recipes-1.3.4.tgz#0d2d4d48a718c8c044769fdc4f89592dc8b69585"
@@ -2210,11 +2225,21 @@ caniuse-db@^1.0.30000639:
   resolved "https://registry.yarnpkg.com/caniuse-db/-/caniuse-db-1.0.30001036.tgz#8761fb6cd423ef2d3f8d96a21d898932252dc477"
   integrity sha512-plRkihXQyiDaFUXC7x/jAIXXTKiiaWvfAagsruh/vmstnRQ+a2a95HyENxiTr5WrkPSvmFUIvsRUalVFyeh2/w==
 
+caniuse-db@^1.0.30001017:
+  version "1.0.30001039"
+  resolved "https://registry.yarnpkg.com/caniuse-db/-/caniuse-db-1.0.30001039.tgz#b5e8c3bb07a144341644729fa2a5eb2c0deaf47d"
+  integrity sha512-XVk5KMAi8/DI28tQXKuq1PDyuPoD9Ypnda3ctF04TlB+LYIb+bgHq0ZDfNOn0+4cwLENJC0093Vuf0dhkjXQ7Q==
+
 caniuse-lite@^1.0.0, caniuse-lite@^1.0.30000981, caniuse-lite@^1.0.30001035, caniuse-lite@^1.0.30001036:
   version "1.0.30001036"
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001036.tgz#930ea5272010d8bf190d859159d757c0b398caf0"
   integrity sha512-jU8CIFIj2oR7r4W+5AKcsvWNVIb6Q6OZE3UsrXrZBHFtreT4YgTeOJtTucp+zSedEpTi3L5wASSP0LYIE3if6w==
 
+caniuse-lite@^1.0.30001038:
+  version "1.0.30001039"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001039.tgz#b3814a1c38ffeb23567f8323500c09526a577bbe"
+  integrity sha512-SezbWCTT34eyFoWHgx8UWso7YtvtM7oosmFoXbCkdC6qJzRfBTeTgE9REtKtiuKXuMwWTZEvdnFNGAyVMorv8Q==
+
 caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
@@ -3633,6 +3658,11 @@ electron-to-chromium@^1.2.7, electron-to-chromium@^1.3.380:
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.382.tgz#cad02da655c33f7a3d6ca7525bd35c17e90f3a8f"
   integrity sha512-gJfxOcgnBlXhfnUUObsq3n3ReU8CT6S8je97HndYRkKsNZMJJ38zO/pI5aqO7L3Myfq+E3pqPyKK/ynyLEQfBA==
 
+electron-to-chromium@^1.3.390:
+  version "1.3.397"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.397.tgz#db640c2e67b08d590a504c20b56904537aa2bafa"
+  integrity sha512-zcUd1p/7yzTSdWkCTrqGvbnEOASy96d0RJL/lc5BDJoO23Z3G/VHd0yIPbguDU9n8QNUTCigLO7oEdtOb7fp2A==
+
 elliptic@^6.0.0:
   version "6.5.2"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.2.tgz#05c5678d7173c049d8ca433552224a495d0e3762"
@@ -3891,6 +3921,19 @@ eslint-module-utils@^2.4.1:
     debug "^2.6.9"
     pkg-dir "^2.0.0"
 
+eslint-plugin-compat@^3.5.1:
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-compat/-/eslint-plugin-compat-3.5.1.tgz#09f9c05dcfa9b5cd69345d7ab333749813ed8b14"
+  integrity sha512-dhfW12vZxxKLEVhrPoblmEopgwpYU2Sd4GdXj5OSfbQ+as9+1aY+S5pqnJYJvXXNWFFJ6aspLkCyk4NMQ/pgtA==
+  dependencies:
+    "@babel/runtime" "^7.7.7"
+    ast-metadata-inferer "^0.1.1"
+    browserslist "^4.8.2"
+    caniuse-db "^1.0.30001017"
+    lodash.memoize "4.1.2"
+    mdn-browser-compat-data "^1.0.3"
+    semver "^6.3.0"
+
 eslint-plugin-eslint-comments@^3.1.2:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/eslint-plugin-eslint-comments/-/eslint-plugin-eslint-comments-3.1.2.tgz#4ef6c488dbe06aa1627fea107b3e5d059fc8a395"
@@ -4235,7 +4278,7 @@ extend-shallow@^3.0.0, extend-shallow@^3.0.2:
     assign-symbols "^1.0.0"
     is-extendable "^1.0.1"
 
-extend@^3.0.0, extend@~3.0.2:
+extend@3.0.2, extend@^3.0.0, extend@~3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
   integrity sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==
@@ -6901,7 +6944,7 @@ lodash.keys@^3.0.0:
     lodash.isarguments "^3.0.0"
     lodash.isarray "^3.0.0"
 
-lodash.memoize@^4.1.2:
+lodash.memoize@4.1.2, lodash.memoize@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-4.1.2.tgz#bcc6c49a42a2840ed997f323eada5ecd182e0bfe"
   integrity sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4=
@@ -7186,6 +7229,13 @@ mdast-util-compact@^1.0.0:
   dependencies:
     unist-util-visit "^1.1.0"
 
+mdn-browser-compat-data@^1.0.3:
+  version "1.0.16"
+  resolved "https://registry.yarnpkg.com/mdn-browser-compat-data/-/mdn-browser-compat-data-1.0.16.tgz#64f79c50d730108390205ed16e781e702ee1e16d"
+  integrity sha512-g3bkROyUKH5avfQ2Ou2ejtyfGNe7++Axv89+czZuS5EetQsvM1Cw8P/zDoq3SpE72tIrhhVJ74901q15J2Hm4A==
+  dependencies:
+    extend "3.0.2"
+
 mdn-data@2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/mdn-data/-/mdn-data-2.0.4.tgz#699b3c38ac6f1d728091a64650b65d388502fd5b"
@@ -7656,6 +7706,11 @@ node-releases@^1.1.52:
   dependencies:
     semver "^6.3.0"
 
+node-releases@^1.1.53:
+  version "1.1.53"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.53.tgz#2d821bfa499ed7c5dffc5e2f28c88e78a08ee3f4"
+  integrity sha512-wp8zyQVwef2hpZ/dJH7SfSrIPD6YoJz6BDQDpGEkcA0s3LpAQoxBIYmfIq6QAhC1DhwsyCgTaTTcONwX8qzCuQ==
+
 node-sass@^4.13.1, node-sass@^4.8.3:
   version "4.13.1"
   resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.13.1.tgz#9db5689696bb2eec2c32b98bfea4c7a2e992d0a3"
@@ -8477,6 +8532,13 @@ pkg-dir@^3.0.0:
   dependencies:
     find-up "^3.0.0"
 
+pkg-up@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/pkg-up/-/pkg-up-2.0.0.tgz#c819ac728059a461cab1c3889a2be3c49a004d7f"
+  integrity sha1-yBmscoBZpGHKscOImivjxJoATX8=
+  dependencies:
+    find-up "^2.1.0"
+
 pkg-up@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/pkg-up/-/pkg-up-3.1.0.tgz#100ec235cc150e4fd42519412596a28512a0def5"