diff --git a/.github/workflows/e2e_ios.yml b/.github/workflows/e2e_ios.yml
index ea95755..5b95e21 100644
--- a/.github/workflows/e2e_ios.yml
+++ b/.github/workflows/e2e_ios.yml
@@ -159,6 +159,18 @@ jobs:
           key: ${{ runner.os }}-metro-v1-${{ github.run_id }}
           restore-keys: ${{ runner.os }}-metro-v1
 
+      - name: Pre-fetch Javascript bundle
+        run: |
+          nohup yarn tests:packager:jet-ci &
+          printf 'Waiting for packager to come online'
+          until curl --output /dev/null --silent --head --fail http://localhost:8081/status; do
+            printf '.'
+            sleep 2
+          done
+          echo "Packager is online! Preparing bundle..."
+          curl --output /dev/null --silent --head --fail "http://localhost:8081/index.bundle?platform=ios&dev=true&minify=false&inlineSourceMap=true"
+          echo "...javascript bundle ready"
+
       - name: Create Simulator Log
         # With a little delay so the detox test below has time to spawn it, missing the first part of boot is fine
         # If you boot the simulator separately from detox, some other race fails and detox testee never sends ready to proxy
diff --git a/.gitignore b/.gitignore
index f44e1fb..acc10ce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -41,7 +41,6 @@ local.properties
 node_modules/
 npm-debug.log
 
-Example/**/update.json
 Example/**/.update
 Example/**/.pushy
 yarn-error.log
diff --git a/Example/testHotUpdate/.eslintrc.js b/Example/testHotUpdate/.eslintrc.js
deleted file mode 100644
index 40c6dcd..0000000
--- a/Example/testHotUpdate/.eslintrc.js
+++ /dev/null
@@ -1,4 +0,0 @@
-module.exports = {
-  root: true,
-  extends: '@react-native-community',
-};
diff --git a/Example/testHotUpdate/update.json b/Example/testHotUpdate/update.json
new file mode 100644
index 0000000..02ba04d
--- /dev/null
+++ b/Example/testHotUpdate/update.json
@@ -0,0 +1,10 @@
+{
+    "ios": {
+        "appId": 10976,
+        "appKey": "p5q_rPYNOE0WdCf-i9ZCGPw-DUGUCMvY"
+    },
+    "android": {
+        "appId": 10977,
+        "appKey": "bUYKfZgtC9VirZsQbAt8qken2Gq2uxe3"
+    }
+}
\ No newline at end of file
diff --git a/README.md b/README.md
index 836b004..7b53211 100644
--- a/README.md
+++ b/README.md
@@ -33,3 +33,4 @@ $ yarn start
 本组件由[React Native 中文网](https://reactnative.cn/)独家发布，如有定制需求可以[联系我们](https://reactnative.cn/about.html#content)。
 
 关于此插件发现任何问题，可以前往[Issues](https://github.com/reactnativecn/react-native-pushy/issues)发帖提问。
+