diff --git a/.eslintignore b/.eslintignore
index e3c42d9d..af297a3d 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -30,11 +30,4 @@ src/editor/jspdf/underscore-min.js
 
 src/editor/extensions/ext-mathjax/mathjax
 
-# Todo: We should at least check `compat/compat` in our other files, however
-## Two "external" items are modified locally, so we undo their ignoring
 src/external/**/*
-!src/external/dom-polyfill
-src/external/dom-polyfill/*
-!src/external/dom-polyfill/dom-polyfill.js
-!src/external/dynamic-import-polyfill
-
diff --git a/.eslintrc.js b/.eslintrc.js
index dbb436df..d17f013b 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -145,7 +145,6 @@ module.exports = {
         'src/editor/typedefs.js',
         'src/editor/redirect-on-no-module-support.js',
         'src/editor/extensions/ext-imagelib/index.js',
-        'src/external/dom-polyfill/dom-polyfill.js',
         'screencasts/svgopen2010/script.js'
       ],
       rules: {