React app not working in Internet Explorer 11

This worked for me. Update the development array in package.json “development”: [ “ie 11”, “last 1 chrome version”, “last 1 firefox version”, “last 1 safari version” ] } Add the below code in index.js in the src folder // These must be the first lines in src/index.js import ‘react-app-polyfill/ie11’; import ‘react-app-polyfill/stable’; Then delete the node_modules … Read more

IE’s toLocaleString has strange characters in results

First, a bit of background: IE11 implemented the ECMA-402 ECMAScript Internationalization API that redefined Date.prototype.toLocaleString (as well as toLocaleDateString and toLocaleTimeString) as calls to format on Intl.DateTimeFormat. As such, d.toLocaleString() is equivalent to Intl.DateTimeFormat(undefined, { year: ‘numeric’, month: ‘numeric’, day: ‘numeric’, hour: ‘numeric’, minute: ‘numeric’, second: ‘numeric’ }).format(d) You might think that this is pretty … Read more

Bang IE7 – What does it mean?

I have heard of this before, but not with the exact text !ie7. I found a reference here: http://www.javascriptkit.com/dhtmltutors/csshacks3.shtml !ie Internet Explorer 7 fixed one of the issues with the !important identifier, but it still has problems when the identifier has an error in it. If an illegal identifier name is used in place of … Read more

Template literals syntax is not working in IE11

If you look at the ECMAScript 6 compatibility table, you’ll see that template literals are not supported by IE11. The “use strict”; statement doesn’t really change anything, because before it is determined whether a code is in strict mode, it has to be parsed first, but it can’t be parsed, because you’re using syntax that the … Read more

What is the alternate for -webkit-print-color-adjust in firefox and IE

Feb 2023 Update: As of mid-2022 onwards, we can simply use print-color-adjust: economy|exact on the element, without the need to place inside a print media query. color-adjust on it’s own will become depreciated. (Thank you to misterManSam for the depreciation warning.) Previous answer (originally from 2016): As mentioned -webkit-print-color-adjust: exact is specific to WebKit browsers, … Read more

How can I test my web pages in Microsoft Internet Explorer on a Mac?

Update: Microsoft now provide virtual machine images for various versions of IE that are ready to use on all of the major OS X virtualisation platforms (VirtualBox, VMWare Fusion, and Parallels). Download the appropriate image from: https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/ On an Intel based Mac you can run Windows within a virtual machine. You will need one virtual … Read more

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