From bf9dce650930ea8891b1377dbba9d1a3feab313a Mon Sep 17 00:00:00 2001
From: Joel Davies <joel.davies@stfc.ac.uk>
Date: Tue, 19 Mar 2024 12:25:09 +0000
Subject: [PATCH] Remove react-app-polyfill and custom-event-polyfill #1379

---
 package.json |  7 +-----
 src/main.tsx |  3 ---
 yarn.lock    | 69 ----------------------------------------------------
 3 files changed, 1 insertion(+), 78 deletions(-)

diff --git a/package.json b/package.json
index 6dedb51e..de2b33e3 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,6 @@
     "axios": "1.6.1",
     "connected-react-router": "6.9.3",
     "cookie-parser": "1.4.5",
-    "custom-event-polyfill": "1.0.7",
     "eslint-config-prettier": "9.1.0",
     "eslint-plugin-cypress": "2.15.1",
     "eslint-plugin-prettier": "5.1.3",
@@ -41,7 +40,6 @@
     "prop-types": "15.8.1",
     "query-string": "7.1.1",
     "react": "18.2.0",
-    "react-app-polyfill": "3.0.0",
     "react-dom": "18.2.0",
     "react-i18next": "14.0.1",
     "react-joyride": "2.7.2",
@@ -84,9 +82,6 @@
       "prettier --config .prettierrc --write"
     ]
   },
-  "eslintConfig": {
-    "extends": "react-app"
-  },
   "browserslist": [
     ">0.2%",
     "not dead",
@@ -125,4 +120,4 @@
     "wait-on": "7.2.0"
   },
   "packageManager": "yarn@4.1.0"
-}
+}
\ No newline at end of file
diff --git a/src/main.tsx b/src/main.tsx
index 4b79fce6..408cb0db 100644
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -1,6 +1,3 @@
-import 'custom-event-polyfill';
-import 'react-app-polyfill/ie11';
-import 'react-app-polyfill/stable';
 import { createRoot } from 'react-dom/client';
 import 'typeface-roboto';
 import App from './App';
diff --git a/yarn.lock b/yarn.lock
index 03d666e2..319dda44 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2443,13 +2443,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"asap@npm:~2.0.6":
-  version: 2.0.6
-  resolution: "asap@npm:2.0.6"
-  checksum: 10/b244c0458c571945e4b3be0b14eb001bea5596f9868cc50cc711dc03d58a7e953517d3f0dad81ccde3ff37d1f074701fa76a6f07d41aaa992d7204a37b915dda
-  languageName: node
-  linkType: hard
-
 "asn1@npm:~0.2.3":
   version: 0.2.6
   resolution: "asn1@npm:0.2.6"
@@ -3266,13 +3259,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"core-js@npm:^3.19.2":
-  version: 3.26.1
-  resolution: "core-js@npm:3.26.1"
-  checksum: 10/ec6f6a366d0a9503b29e8b46cbc2665000cc920b0a4add7b7b53fb8f45c3ac934921334bd741f2d40fca87991d6c31dcd1becdca6bd8782f8833f1229d8c20d8
-  languageName: node
-  linkType: hard
-
 "core-util-is@npm:1.0.2":
   version: 1.0.2
   resolution: "core-util-is@npm:1.0.2"
@@ -3358,13 +3344,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"custom-event-polyfill@npm:1.0.7":
-  version: 1.0.7
-  resolution: "custom-event-polyfill@npm:1.0.7"
-  checksum: 10/f9ff2cf13e482a75b3cf83dce9e2c6e3063c5ac1b9c23ac440e4f27e875b0873445b11811237f3f30aeb1216e9ad20f9f9d30ccf5b1b658a4e50dd0b3e67b629
-  languageName: node
-  linkType: hard
-
 "cypress@npm:13.6.4":
   version: 13.6.4
   resolution: "cypress@npm:13.6.4"
@@ -7439,15 +7418,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"promise@npm:^8.1.0":
-  version: 8.3.0
-  resolution: "promise@npm:8.3.0"
-  dependencies:
-    asap: "npm:~2.0.6"
-  checksum: 10/55e9d0d723c66810966bc055c6c77a3658c0af7e4a8cc88ea47aeaf2949ca0bd1de327d9c631df61236f5406ad478384fa19a77afb3f88c0303eba9e5eb0a8d8
-  languageName: node
-  linkType: hard
-
 "prop-types@npm:15.8.1, prop-types@npm:^15.6.2, prop-types@npm:^15.7.2, prop-types@npm:^15.8.1":
   version: 15.8.1
   resolution: "prop-types@npm:15.8.1"
@@ -7576,15 +7546,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"raf@npm:^3.4.1":
-  version: 3.4.1
-  resolution: "raf@npm:3.4.1"
-  dependencies:
-    performance-now: "npm:^2.1.0"
-  checksum: 10/4c4b4c826b09d2aec6ca809f1a3c3c12136e7ec8d13fbb91f495dd2c99cd43345240e003da3bfd16036a432e635049fc6d9f69f9187f5f22ea88bb146ec75881
-  languageName: node
-  linkType: hard
-
 "range-parser@npm:1.2.0":
   version: 1.2.0
   resolution: "range-parser@npm:1.2.0"
@@ -7625,20 +7586,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react-app-polyfill@npm:3.0.0":
-  version: 3.0.0
-  resolution: "react-app-polyfill@npm:3.0.0"
-  dependencies:
-    core-js: "npm:^3.19.2"
-    object-assign: "npm:^4.1.1"
-    promise: "npm:^8.1.0"
-    raf: "npm:^3.4.1"
-    regenerator-runtime: "npm:^0.13.9"
-    whatwg-fetch: "npm:^3.6.2"
-  checksum: 10/c544a1d9f5b3e4df1f51a01ceaa21d1350016520d0caf67549239ce112ea00b6014612f756e576609b986abe6eca1bb4f2625608bb9ae4501b74ca4398874be3
-  languageName: node
-  linkType: hard
-
 "react-dom@npm:18.2.0":
   version: 18.2.0
   resolution: "react-dom@npm:18.2.0"
@@ -7935,13 +7882,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"regenerator-runtime@npm:^0.13.9":
-  version: 0.13.11
-  resolution: "regenerator-runtime@npm:0.13.11"
-  checksum: 10/d493e9e118abef5b099c78170834f18540c4933cedf9bfabc32d3af94abfb59a7907bd7950259cbab0a929ebca7db77301e8024e5121e6482a82f78283dfd20c
-  languageName: node
-  linkType: hard
-
 "regenerator-runtime@npm:^0.14.0":
   version: 0.14.1
   resolution: "regenerator-runtime@npm:0.14.1"
@@ -8316,7 +8256,6 @@ __metadata:
     cookie-parser: "npm:1.4.5"
     cors: "npm:2.8.5"
     cross-env: "npm:7.0.3"
-    custom-event-polyfill: "npm:1.0.7"
     cypress: "npm:13.6.4"
     eslint: "npm:8.56.0"
     eslint-config-prettier: "npm:9.1.0"
@@ -8339,7 +8278,6 @@ __metadata:
     prop-types: "npm:15.8.1"
     query-string: "npm:7.1.1"
     react: "npm:18.2.0"
-    react-app-polyfill: "npm:3.0.0"
     react-dom: "npm:18.2.0"
     react-i18next: "npm:14.0.1"
     react-joyride: "npm:2.7.2"
@@ -9729,13 +9667,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"whatwg-fetch@npm:^3.6.2":
-  version: 3.6.2
-  resolution: "whatwg-fetch@npm:3.6.2"
-  checksum: 10/f05ceff9e9098db228fee84b9f9258a434283c0eb3cd8183c8b22e25e32698a2f80ee8a9c1c634d5b1441fe7692a031812d8a1f21079da76892a5119be2ac945
-  languageName: node
-  linkType: hard
-
 "whatwg-mimetype@npm:^4.0.0":
   version: 4.0.0
   resolution: "whatwg-mimetype@npm:4.0.0"