polyfills for cross browser support

Do you have a legacy app designed for chrome and suddenly you have to support multiple browsers like IE10+, Firefox and Chrome. Then you will have to use polyfill library. There are few options for polyfill libraries.

1 : Shadow-DOM

https://github.com/tuespetre/shadow-dom

Pros :

  • Does not wrap the original DOM with a wrapper. Hence, it allows the selenium automation to work nicely with internet explorer.

2 : Polyfill-io

https://qa.polyfill.io/v2/docs/

Pros:

  • Library does the browser detection work & fetches necessary polyfills when needed
  • Highly configurable

3: Webcomponents

https://www.webcomponents.org/polyfills/

Pros:

  • Allows featuer detection, meaning you download polyfill only when needed
  • Does not interfere with existing application

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