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const doFetch = (url, opts = {}) => {
  const headers = new Headers()
  headers.append('Cache-Control', 'max-age=0')
  if (opts.headers) {
    for (const header of opts.headers) {
      headers.append(header[0], header[1])
    }
  }
  return new Promise((resolve, reject) => {
    fetch(url, {

andon

package com.cachetester;

import com.facebook.react.bridge.ModuleSpec;
import com.facebook.react.bridge.NativeModule;
import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.modules.network.NetworkingModule;
import com.facebook.react.modules.network.OkHttpClientProvider;
import com.facebook.react.shell.MainReactPackage;

import java.io.File;

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import PerfMonitor from 'react-native/Libraries/Performance/RCTRenderingPerf';
PerfMonitor.toggle();
PerfMonitor.start();
 
class App extends Component {
  componentDidMount() {
    setTimeout(() => {
      PerfMonitor.stop();
    }, 8000);
  }

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'use strict';

var path = require('path');

var config = {
  getProjectRoots() {
    return getRoots();
  },

  getAssetRoots() {