JavaScript Polyfill is code that implements the functionality not supported by certain browsers in a non-native way.
How to use polyfill in JavaScript ? - GeeksforGeeks
When and How to Use Polyfills. A polyfill, or polyfiller, is a
How To Create A Polyfill. What is a polyfill, and how do you go
The dialog element: The way to create tomorrow's modal windows
dialog = the easiest way to make a popup modal
jQuery Modal Dialogs for Sitecore 6.5-7.0 to fix Chrome 37+
Implementing modal popup with native html
Polyfill in JavaScript - Ayesha Malik - Medium
Sudhanshu Shekhar - Sudhanshu Shekhar's Blog
JavaScript showModalDialog method
How to write polyfills for the call(), apply(), and bind() methods
Polyfills: everything you ever wanted to know, or maybe a bit less
Bleeding Edge Web: October 2014
Polyfills: everything you ever wanted to know, or maybe a bit less
Bootstrap Modal Dialog showing under Modal Background - Rick