diff --git a/packages/react-dev-utils/package.json b/packages/react-dev-utils/package.json
index eab07c1be..440a60776 100644
--- a/packages/react-dev-utils/package.json
+++ b/packages/react-dev-utils/package.json
@@ -60,5 +60,8 @@
   },
   "scripts": {
     "test": "jest"
+  },
+  "jest": {
+    "testURL": "http://localhost/"
   }
 }
diff --git a/packages/react-error-overlay/package.json b/packages/react-error-overlay/package.json
index fe6c7fd68..93aa7d57a 100644
--- a/packages/react-error-overlay/package.json
+++ b/packages/react-error-overlay/package.json
@@ -76,6 +76,7 @@
       "/node_modules/",
       "/fixtures/",
       "setupJest.js"
-    ]
+    ],
+    "testURL": "http://localhost/"
   }
 }
diff --git a/tasks/e2e-installs.sh b/tasks/e2e-installs.sh
index d1150a874..3cf57247f 100755
--- a/tasks/e2e-installs.sh
+++ b/tasks/e2e-installs.sh
@@ -75,7 +75,7 @@ root_path=$PWD
 if hash npm 2>/dev/null
 then
   npm i -g npm@latest
-  npm cache clean || npm cache verify
+  npm cache verify
 fi
 
 # Bootstrap monorepo
diff --git a/tasks/e2e-kitchensink.sh b/tasks/e2e-kitchensink.sh
index 9a3f895a5..8598ab1c2 100755
--- a/tasks/e2e-kitchensink.sh
+++ b/tasks/e2e-kitchensink.sh
@@ -67,7 +67,7 @@ root_path=$PWD
 if hash npm 2>/dev/null
 then
   npm i -g npm@latest
-  npm cache clean || npm cache verify
+  npm cache verify
 fi
 
 # Bootstrap monorepo
diff --git a/tasks/e2e-simple.sh b/tasks/e2e-simple.sh
index a1eecbaf0..1671a54f9 100755
--- a/tasks/e2e-simple.sh
+++ b/tasks/e2e-simple.sh
@@ -79,7 +79,7 @@ fi
 if hash npm 2>/dev/null
 then
   npm i -g npm@latest
-  npm cache clean || npm cache verify
+  npm cache verify
 fi
 
 # Bootstrap monorepo