Cross Browser testing for React Apps


Before we discuss the need of cross browser testing for React apps lets get a quick essence of why do people use react to develop their apps and what is cross browser testing.

React
React and React Native, support all the major browsers across platforms ability. It means that if one would want to build an application for iOS and android platform, all they would do is have a single code base and rest is taken care by react to make it cross platform. In addition to it the support for all the major browsers and has been tested, however with a little limitations for older browser where the polyfills are used to support them.

Cross browser Testing
Cross browser testing helps you validate if your application is compatible across different browsers, platforms and devices. It becomes important today to support all the major browsers and the devices as it is almost impractical to control what platform or browsers the users would use to access your application if its a customer facing application

Now that we have a basic idea on React, do we really need to do and invest time and money on cross browser testing? The answer is depends!
Usually as part of building an application along with react developers happen to write
  1. Their own HTLM/CSS and
  2. Use other libraries.
  3. Write polyfills to support the older browsers
In this case one would not know until tested and verified that it works seamlessly across the browsers and platforms.

In case the application doesn't use any other libraries and/or custom HTML/CSS, then one can skip the cross browser testing.

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