React - Chrome does not report undefined JavaScript object property. Crashes - reactjs

Question

Since im building my webapp with React, when i try to set something into an undefined object property, the code processing crashes (reproducible with breakpoint debugging) and no errors are shown in the console log. Also the chrome react extension does not give me any errors.
So to finding a bug is more time consuming that it should be.
let changedJsonResponse = jsonResponse;
changedJsonResponse.data = newTableData; // changedJsonResponse.data is undefined
// throws no error & code proccess crashes
webpack.config.js
const webpack = require('webpack');
const path = require('path');
let config = {
devtool: 'eval-source-map',
entry: {
FooManagement: ['babel-polyfill', './domains/FooManagement/entry.jsx'],
},
output: {
path: path.resolve(__dirname, '../web/react/'),
filename: '[name].js'
},
externals: {
'jquery': 'window.jQuery',
'bootbox': 'window.bootbox',
},
resolve: {
alias: {
alias_shared: path.resolve(__dirname, 'shared'),
},
},
module: {
rules: [
{
test: /\.jsx?$/,
exclude: [/node_modules/],
loader: 'babel-loader',
options: {presets: ['es2015', 'react']}
},
{
test: /\.css/,
loader: 'style-loader!css-loader'
}
]
}
};
module.exports = config;
package.json
{
"author": "myself",
"version": "0.0.1",
"description": "",
"main": "index.jsx",
"scripts": {
"watch": "webpack -d --watch",
"build": "webpack -p"
},
"devDependencies": {
"babel-core": "^6.26.0",
"babel-loader": "^7.1.2",
"babel-polyfill": "^6.26.0",
"babel-preset-es2015": "^6.24.1",
"babel-preset-react": "^6.24.1",
"css-loader": "^0.28.7",
"style-loader": "^0.19.0",
"webpack": "^3.8.1"
},
"dependencies": {
"axios": "^0.16.2",
"dateformat": "^3.0.2",
"is-uuid": "^1.0.2",
"lodash": "^4.17.4",
"react": "^16.0.0",
"react-cropper": "^1.0.1",
"react-dom": "^16.0.0",
"react-dropzone": "^4.2.3",
"react-router-dom": "^4.2.2",
"react-switchery-component": "0.0.7",
"uuid": "^3.1.0"
}
}
Chrome version: 62.0.3202.94

Answer 1

I was able to catch those errors in Axios .catch.
After a while i found the cause of the problem.