React Native URL Polyfill

A light and trustworthy URL polyfill for React Native

react-native-url-polyfill is a full implementation of the WHATWG URL Standard that has been optimized for React Native.

• Trustworthy. Follows closely the URL Standard spec, and relys on unit tests and Detox e2e tests within React Native.

• Light. Instead of using directly whatwg-url, this polyfill uses a forked version (whatwg-url-without-unicode) where unicode support has been stripped out — Going down from 361 KB to 54 KB.

• Blob support. Supports React Native's Blob without additional steps.

Why do we need this?

React Native does include a polyfill for URL, but this polyfill is homemade — in order to keep it light-weight — and was initially created to handle specific use cases.

Meanwhile, React Native has grown around that polyfill, then some unexpected errors have arisen.

Known issues (non-exhaustive) with React Native's URL are:

• URL cannot handle "localhost" domain for base url react-native#26019.

• URL implementation should add a trailing slash to the base react-native#25717.

• URL incorrectly adds trailing slash react-native#24428.

• Creating an instance of URL like: new URL('http://facebook.com') throws an exception react-native#16434.

Unfortunately, adding react-native-url-polyfill to React Native source code will means adding