Remote debug CORS issue

Is this a bug report?

Yes

Have you read the Contributing Guidelines?

Yes

Environment

Environment:

OS: Windows 10

Node: 8.1.3

Yarn: 0.27.5

npm: 5.0.3

Watchman: Not Found

Xcode: N/A

Android Studio: Version 2.3.0.0 AI-162.4069837

Packages: (wanted => installed)

react: 16.2.0 => 16.2.0

react-native: 0.53.0 => 0.53.0

Steps to Reproduce

Enable remote debug mode when you set a debug server host in Dev settings

You see the following error in browser console

Failed to load http://localhost:8081/index.delta?platform=android&dev=true&minify=false: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://10.10.11.1:8081' is therefore not allowed access. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.

(index):188 Uncaught (in promise) TypeError: Failed to fetch

async function (async)

ws.onmessage @ (index):155

[sunnylqm]

Just change the ip to localhost

[lucidtheory]

I am also on RN ^.54 and i am getting this when debugging android

Installing Cors Toggle Helped fix as per this comment