Expose your React Native network requests in Chrome

InitializeJavaScriptAppEngine.js

103 function setUpXHR() {
104   // The native XMLHttpRequest in Chrome dev tools is CORS aware and won't
105   // let you fetch anything from the internet
106    GLOBAL.XMLHttpRequest = require('XMLHttpRequest'); // COMMENT OUT
107    GLOBAL.FormData = require('FormData'); // COMMENT OUT
108
109    var fetchPolyfill = require('fetch'); // COMMENT OUT
110    GLOBAL.fetch = fetchPolyfill.fetch; // COMMENT OUT
111    GLOBAL.Headers = fetchPolyfill.Headers; // COMMENT OUT
112    GLOBAL.Request = fetchPolyfill.Request; // COMMENT OUT
113    GLOBAL.Response = fetchPolyfill.Response; // COMMENT OUT
114 }

Take care to revert this once you're ready for production