Top "Polyfills" questions

Downloadable code used to add new functionality to browsers.

JSON polyfill: JSON 2 or JSON 3?

I need a JSON polyfill to support IE 7 and some IE 8 and IE 9 modes. Should I pick JSON 2 or JSON 3? …

json polyfills
fetch retry request (on failure)

I'm using browser's native fetch API for network requests. Also I am using the whatwg-fetch polyfill for unsupported browsers. However …

javascript fetch-api polyfills
How do I make Object.entries available in TypeScript?

In my angular-cli-built app (which is currently using TypeScript 2.0.3) I want to be able to use this decomposition-based iterator: for (…

angular typescript ecmascript-6 polyfills
ReactJS - SCRIPT1010: Expected identifier - Production build not running on IE11

I created a new project with create-react-app today. The production build is not running fine on IE11, the console shows …

reactjs internet-explorer-11 babeljs create-react-app polyfills
Object doesn't support this property or method EmberJs IE 8 issue

I am getting following error on my IE 8 page (The page is running fine in other browsers). User Agent: Mozilla/4.0 (…

javascript ember.js internet-explorer-8 polyfills ie-compatibility-mode
How do I make Angular 8 compatible with IE11?

I upgraded to Angular 8 using ng update. It ran its migration scripts which (among other things) removed the es6/es7 …

angular angular-cli polyfills
TS2304: cannot find name require and process

When I want to start my angular 2 app using "npm start". I get errors: I tried a lot of "solutions" …

angular typescript webpack polyfills
using <picture> tag with Internet Explorer 11

Have been searching the internet for a while and no solution. I am trying to use slick carousel with the …

html css explorer polyfills
Add polyfill code in Angular 2

How would I add code of a polyfill in a Angular 2 cli-project? For example, I would like to use the …

angular polyfills
PolyFill/Shim for CSS transitions and animations

Google is failing me somewhat on this (I think because the terminology for PolyFill/Shim/Spackle is new and diverse …

javascript html css polyfills css-transitions