异常

React Native调试时报如下错误

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://192.168.1.115:8081' 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.

异常.png

错误原因

访问的域名不同导致, 浏览器地址栏为192.168.1.115:8081/debugger-ui/, 真机或模拟器访问的地址为http://localhost:8081/index.delta?platform=android&dev=true&minify=false

浏览器地址.png

解决办法

将浏览器地址的192.168.1.115改为与访问地址相同的localhost即可