React ie11 syntax error. Provide details and share your research! But avoid ….

React ie11 syntax error js Hot Network Questions Is Aycan Sucuk Garlic sausage a pre-cooked deli meat, or a raw meat product requiring cooking? Hello, CKEditor 5 isn't compatible with IE11. It works well in Chrome browser but gives 'Syntax error' in IE. IE must not support arrow-functions. config. js might look something like this. Just found out a very weird behaviour. I have below structure and its compiling good. js: with-react-intl example isn't working on IE11. x? Yes Which terms did you search for in User Guide? "internet explorer 11", "syntax error" Environment node -v: 8. Latest version of react-flip-toolkit, window. Rendered server side. A white screen is displayed, along with a syntax and what appears to be a polyfill issue in the console. Just use the old function keyword. Featured on Meta We’re (finally!) going to the cloud! More network sites to see advertising test [updated with phase 2] Linked. env. g. The above project is a very minimal React 16 app which includes a single reference to a react-bootstrap component. I had the similar issue. Install the package: install the package Hey @isaac-ipl, thanks for reporting this. construct(cls, Array. vue: lang="coffee". I was previously using react v. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog react-redux; syntax-error; babeljs; or ask your own question. Firstly IE doesn't support arrow functions at all. env file resolved the issue. 0 and now to 0. babelrc using the babel options babelrc: false, configFile: IE11 (blank page - syntax error): Babel-preset-env and webpack config - app not working. js: [lastest] Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Installed react-app-polyfill; Updated my browser list in package. Remove the "homepage": "app-url" from package. looking into this issue as I have to support IE11 as well, I found out a great ressource on transpilling node_modules packages babel/babel-loader#171, might be what you need as well. 0, what worked for me on IE 11 was: Including the following imports at first line of index. IE 11), consider including a global polyfill in your bundled application, such as core-js or babel-polyfill. Debugger shows SCRIPT1002 @ SCRIPT errors with IE 11 when using Babel and Vue. You switched accounts on I have the webpack+babel setup for React JS project. Sign in Workik offers context-setting options for Code Syntax Validator such as: * Syncing codebases from GitHub, GitLab, or Bitbucket for ongoing validation. Now I want to test multiple components together, and I immediately get this error: SyntaxError: Unexpected token . Sign in Product Why is my react app not rendering in IE 11? I have an issue with IE 11 and my react app. But still not showing anything in ie 11. js, so it handles the modules syntax itself, where as Babel handles the modules in the development builds. That being the case, here are two quick things to check: Are you sure you're using that loader in your webpack config for js files? If you have followed the above steps and it still doesn't work, please make sure you're not using any ES6 syntax which is not supported by IE, like the arrow functions =>. Debugger points to ansi-regex dependecy in node-modules, the problem is ES6 arrow function syntax. 0), but now it throws a "Syntax Error" in IE11. I am using Webpack, TypeScript and I have read all the Bug report Describe the bug Running NextJS no longer renders the site in IE11 for version 9. The app is rendered on server side and display on client browser, but the app don't start. I added "ie 11" to production and development array in package. io-client. In Chrome works as expected. REACT_APP_URL and process. So you need to mention the meta information to let browser know that the intended browser is IE11/edge. It seems to be a problem with socket-io-client babel and debug dependencies. Any ideas how can I fix this? I tried Do you want to request a feature or report a bug? What is the current behavior? IE 11 is displaying blank page when using React Contexts. js (127,1) When I We have built an App in React-Redux with SSR. Fragment> or the shorthand <></> syntax like so import React from 'react' const Component Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. I tried a IE11 (blank page - syntax error): Babel-preset-env and webpack config - app not working. However, some time ago we made some research and run the editor on this browser (but it's still full of bugs). Due to the deprecation of this package I removed this dependency and installed core-js and regenerator-runtime. If you support older browsers and devices which may not yet provide these natively (e. But after install From version 7. If you still want to support users on IE11 with the Sentry SDK there are two options: /** * This file includes polyfills needed by Angular and is loaded before the app. html file so your React app can load and mount, and handle routing to the correct app page internally. 14. 6 => 16. I checked my bundled vendor script made with webpack and noticed it containing arrow functions, which are not working in IE11. ,With much efforts you You can move import 'react-app-polyfill/ie11'; import 'react-app-polyfill/stable' to the top of index. The production bundle is built with rollup. ,We’re almost done with all the code changes part now you need to delete . 3 Creating an optimized production build Compiled successfully Linting and checking validity of types Collecting page data Generating static pages (5/5) Collecting build traces Finalizing page optimization Route (app) Size First Load JS ┌ / Is this a bug report? Yes Can you also reproduce the problem with npm 4. getPrototypeOf(this)); return instance Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I am developing a react app. js import "react-app-polyfill/ie11"; import "react-app-polyfill/stable"; Including ie 11 in my I cant change. This works as expected in Chrome, Edge, Firefox and Safari but not IE11. anything else, "npm test" runs smoothly. Current behavior App crashes in IE11 because of non traspiled arrow functions. find() that are not supported in IE 11 add import 'react-app-polyfill/stable'; just below the first line in Yep, that's right. System information. babelrc 和webpack. The solution was to update browserlist in package. To host your app on the IIS with the name Toggle navigation. I'm trying to get my React App with ES2015 functionalities running in IE >= 11 using Webpack + Babel. 8. Here is the error Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Running React 16 with Webpack and Babel. js file. I'm trying to run my app on IE11 but I got a problems in IE debugger. I think your issue is that it will use the node version by default (see the main entry in the package. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog You signed in with another tab or window. delete . Secondly, the const keyword is only supported in IE11+, so IE10 and lower would be an issue there. But then I discovered Issue #6924 in create-react-app’s GitHub repo. That being said, we are not providing internal polyfills, so you'll need to BYO for IE is not a big fan of ES6 syntax, so you correctly fixed it by removing the arrow notation. Answer by Sawyer Nash We’re almost done with all the code changes part now you need to delete . 1 SCRIPT438: Object doesn't support property or method 'entries' Did you try recovering your Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I am using react v16. 59. Using the IE version from dist worked for me BUT I initially wasn't using it for other parts of RHF (e. Restart App. On Component lo This isn't an issue with react-router-dom, or even really react. I am unable to get React Intl working correctly in IE11. js 14. It seemed whenever React is importing something else, such as For me, I was making a call with fetch from a new computer and I forgot to add the env file to populate the process. 1. Open the console. In the react-intl package there is a distributed babel. I believe this is due to babel polyfills, so I have followed numerous solutions( I am trying to get started building a site in ReactJS. json. I am new to webpack and babel. Your index. js" React production build not working with IE 11 1 IE11: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object I have created a React sample using "react-scripts": "3. I need to use socket-io-client in the version I'm using, if I go back many versions it works but I lose a lot of resources. I updated a description of the problem. 15. Console says Syntax Error. 0. Add this two-line import "react-app-polyfill/ie11"; import "react-app-polyfill/stable"; to top of index. In my case, it was because I am using coffeescript in . 0 (Please use core-js instead. By design :(The reason - one of the goals for v4 was to support modern JS, thus require modern js to be used by React-hot-loader. OS: [Windows] Browser: IE11; Version of Next. 0 Using react Fragments with either <React. setPrototypeOf(instance, Object. template literal is es6 syntax, so i would recommend to you use es5 target in tsconfig if you are not sure what you can use per browsers check it here Share I understand that the const keyword has been already implemented across the board in browsers except for IE10 versions, but is it viable? If someone jumps on my site on IE10< will the "const" keyword be re-assigned to "var"? if not will the whole site fail? the MDN docs on the const keyword give a handy chart at the bottom which tells me that not only IE, but rather many Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; Toggle navigation. REACT_APP_API_KEY fields. I co There are several React apps that need to work in IE 11 for compliance reasons. js file are import 'react Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company You signed in with another tab or window. It works wonderfully on every browsers except Internet Explorer 11 and bellow. 5. 6" What operating system and processor architecture are you using Windows 10 Skip to content Navigation Menu I am developing a React app with antd. 0, I than changed to 15. In the IE-11 it renders a blank page. The easiest way to use the react-monaco-editor with create-react-app is to use the react-app-rewired project. Promise is polyfilled by babel-polyfill. cache folder from your node_modules folder due to some issue in babel-loader as mentioned in create-react-app’s docs. Anyway, thank you for the lib, and sorry for such a long post ;) Navigation Menu Toggle navigation. 17134. I have built this project by vue-cli + vuejs-templates/webpack "build/utils. Screenshots. Do you have any idea what may go wrong? Thanks in IE 11 does not support template literal. Should add the polyfill for React-Intl on IE11 react-intl, intl-messageformat, intl-messageformat-parser. IE11: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object 1 IE 11 "Expected :" using React Babel 7 Typescript Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog Reactjs I'm trying to get my React App with ES2015 functionalities running in IE >= 11 using Webpack + Babel. I followed the guide for adding polyfills using react-app-polyfill. Render react app in IE 11 gives me "you need to enable javascript to run this app" Hot Network Questions Novel about a a girl who lives in a subterranean city. 0 build > next build Next. It (most likely) says „Syntax error“ or something is undefined. Most issues were resolved by implementing polyfils. I'm unfamiliar with "dreamhost" so it's not clear if using Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; I'm using Typescript + React + Webpack stack (for ts/tsx files I have awesome-typescript-loader). npm install react-app-polyfill. js 6 or later and the latest version of Chrome, Firefox, and Safari. Expected a property name. php, line 1 character 6 I am using Hi @pkaufi,. js file the import is for import 'babel-polyfill'; think should be @babel/polyfill. If a component is single, and not importing anything else, "npm test" runs smoothly. 6 react-dom: ^16. The IE console reports the following syntax error: script 1002 main. Coming back to this now a few months later, we were able to resolve it by transpiling it to ES5 syntax, and was able to successfully get a local demo working with BlobProvider. Today, I saw something new: “Syntax Got console error - "Syntax error" after running npm start command. I have created an example repo that demonstrates the issue. However, when I tried to put my JS in a separate file, I started getting this error: "Uncaught SyntaxError: Unexpected token <". tax：我仍然在我的SCRIPT配置中得到错误： 使用 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company To stop the errors and get a default create-react-app React application working in IE 11: Create your basic application with npx create-react-app [AppName]; Add import 'react-app-polyfill/ie11'; to the VERY top of index. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. There's a few things you have to do to get your React soloution working nicely for IE11 Support plan which support plan is this issue covered by? (e. 0, than to 15. If the current behavior is a bug, please provide This problem occurs because your compiled code contains (modern) ES6 syntax whilst IE11 only supports ES5. 2 npm -v Looking at isomorphic-fetch, the package is just a meta-package of sorts that import-exports either whatwg-fetch or node-fetch depending on whether you are in a browser or Node context. The error is thrown at line 118 in react-webcam. – 我正在尝试使用 Webpack + Babel 让我的 React App 具有在 IE >= 11 中运行的 ES2015 功能。设置是自定义的，使用 inferno-compat 层，所以这里没有使用 create-react-app 。. Project Zoo Src Components MySharedComponents When i try to move my shared components as one Project and try to install it in other project like I can reproduce the issue when using the latest version of socket. To Reproduce Create a clean create- Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Internet Explorer: 11. You signed out in another tab or window. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Internet Explorer(IE) doesn't support the ES6 functions at all, but you could install BabelJS. IE < 11) or which have non-compliant implementations (e. io cdn and all is nice until rendering bundeled file, then it stops doing anything. As it states in the docs, This module targets Node. Here is my package. You could also refer to the accepted answer in this thread , it solved the same issue as yours. json: In the meantime, for everyone having their Internet Explorer broken by the "Swiper" library here's the workaround I found that stops the "Swiper" library from breaking Internet Explorer: Go to Webpack configuration (webpack. For more detailed information, you can refer to this issue on GitHub, this thread and this thread. Clone the example; install, npm run dev; open app in IE11; Expected behavior. The setup is custom, using the You signed in with another tab or window. io-client to version 2. After version 7. Steps to Reproduce Navigation Menu Toggle navigation. However JavaScript automatically inserts ; where it thinks it's needed. If you are using the Monaco editor with create-react-app you will need a different approach, if you don't want to eject the app (to allow manually editing the webpack config file). For Safari(10. 然而 - 尽管应用了最新的 babel-polyfill 和 babel-preset-env 实践到我的 . I'm using my own Webpack config and it works perfectly except for this. Details steps as below: Create a new React Application using create-react-app. Your Environment pa IE11 (blank page - syntax error) I have a React app that until now was working fine in IE11 with @babel/polyfill. If you want Did you want to try putting in a PR that adds browserslist to packages/react-error-overlay and set it to "ie 11" and see if that fixes it for you? RHL should NOT work in IE11 and dev mode. Absence of homepage in package. It doesn't seem like the react-bootstrap dist file is ES5 compatible and Babel doesn't transpile files in packages. 19. Check exactly where it broke. json). You switched accounts on another tab or window. Or just vanilla. It seems like the code is kinda polyfilled but actually not so much ^^ Do you know what could cause this ? And do you plan on shipping react-refetch already polyfilled in the future ?. tax配置中的 webpack. For example: const hasBrownEyes = eye. 0 => 3. I can't make Babel convert ES6 class definition to ES5 that would work in IE11. Navigation Menu Toggle navigation. 69. I recently came across the solution to one of your problem. js which babel-loader will pick-up and use those settings. So, for anyone who has this issue, make sure all your imports are from the IE file in dist 😃 As of Babel 7. * Configure linters like ESLint or Pylint for project-specific syntax rules. Import react-app There are several React apps that need to work in IE 11 for compliance reasons. 3. It turns out that the framer-motion library is not compatible with IE, because since v2 the library uses "proxy", which is not compatible with polyfills that react app uses for IE. js: import "react-app-polyfill/ie11", import "react-app-polyfill/stable" Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company IE 11 "Expected :" using React Babel 7 Typescript Hot Network Questions Tax year for gold bullion sold in one year but paid out in the next @foubei I think I've found the issue and probably it's caused by babel-loader automatically picking up babel config. 0 and flow-bin v0. js. I had added react-app-polyfill to this application and it had worked well on IE11. 2 react-dnd stopped working for me in IE 11 (syntax error). When we downgrade to explicitly use 1. The setup is custom, using the inferno-compat layer, so no create-react-app used here. It seems like it's You signed in with another tab or window. Controller) and it took me a day to debug 😭 . This version of socket. In fact, if you check out any examples in this repo, say with-ga or with-redux, run dev locally, and add a simple page Navigation Menu Toggle navigation. 6 react-scripts: 3. I use Webpack, babel and polyfill. io-client uses You signed in with another tab or window. A way to fix this is to instruct webpack to specifically compile You open your app in IE11. js; Deleted node_modules/. Based on my stack trace, it looks like there is a problem with my System js setup. I've built my first app and I'm getting syntax errors in IE11. Using React scripts 5. After I Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company There seems to be an issue the the onClick not working correctly. 3-ie11 % npm run build > nextjs-14. andrew@MacBook-Pro-Andrey nextjs-14. js to transpile the coffeescript. JavaScript compiles just fine, it works fine in modern browsers but it still leaves class definitions in ES6 form which You have two issues here. Being a polyfill, it is simply skipped on non-IE as the browsers support fetch by Parcel by default does not transpile node modules, but they still get bundled when portions of a library is needed. The server hosting the app and serving up page requests needs to be sufficiently configured to redirect all page requests to to the root index. 2. Find babel-loader there. These are the exact steps I followed to get my app running in development mode on my local machine. Reload to refresh your session. Hey, I have been debugging an issue with our project for the last day or two where we had issue's rendering on IE 11 (I know I know but Windows still supports it). Besides, you can also refer to this thread for more information about using Webpack 5 with IE 11. The script was not converted to ES5, so I edited vue-loader. ; Add Polyfill for IE browser. I can reproduce it if I use IE8 testing mode (there's a dropdown saying "8" in the F12 developer tools panel). 3-ie11@0. ,These are the exact steps I followed to get my app running in development mode on my local machine. . 4. Adding back the . Then you can try to delete the . Also changed the webpack hot-reload mechanism. Sign in in the code snippet function ExtendableBuiltin() { var instance = Reflect. 2) : SyntaxError: Unexpected token ''. And Yes, specifying homepage will be helpful when you are going to deploy the App in a sub-directory of the server root. To Reproduce. conf. when downloading the js file from ie11, I can see that the code breaks ast line 22993. This solves your problem for 'Proxy' is undefined Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. js; If you need common standard functions like Array. Sign in Product react-facebook is not working on IE11. You can see this here. Nothing about the file or string mentioned in the debugger stood out. This paragraph describes it pretty well:. babel vs babel-core vs babel-loader vs Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Console indicates, for example, FormattedNumberParts and Component functions. Searched For: IE11, Syntax Error, Script1002, Polyfill. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog I am getting an error in IE 11 (I wish I didn't have to support it but corporate) with a syntax error return Object(react__WEBPACK_IMPORTED_MODULE_0__["useEffect I've got an angular 2 app working inside firefox and chrome, not so much inside (sigh) IE. The first two lines in my index. ,With much efforts you finally are able I just updated to the latest version (1. 0 npmGlobalPackages: create-react-app: Not Found. It's a known issue related with the debug dependency in socket. js). * You can add your own extra polyfills to this file. I'm using core-js but I simply can get past the errors in IE11. Provide details and share your research! But avoid . The default prouduction list is quite generous and Answer by Brett Gonzales Import react-app-polyfill/ie11 and react-app-polyfill/stable at top of your index. Any tips on how Babel Polyfill is outdated as of Babel 7. cache folder under node_modules and again try to run the app to see if it can work. x onwards we compile the SDK's code to es6 per default which means we're dropping out of the box support for IE11. 1 => 3. _extends is then only used at line 187, but everywhere else Object. For IE-11: SCRIPT1028: SCRIPT1028: I got a Windows laptop, created a new project, and I cannot reproduce this on IE11. Sign in Product Hi all I am using next as dependency to build a react universal rendering site. import "core-js/stable"; import "regenerator-runtime/runtime"; Or with Webpack: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Hi! Expected behavior The app doesn't crash working in IE11. json file and add "ie 11" in the development sections of the browserslist. What version of RJEA are you using (react-json-editor-ajrm version)? "react-json-editor-ajrm": "^2. color === "brown" ? true : false. I must have tried 6 or 7 different solutions from stack overflow to no avail. But that would not resolve IE 11 issues. Check what syntax IE11 is pointing to / it‘s crashing The query-string package will not work in IE. Today, I saw something new: “Syntax error”. * Specify languages and frameworks like React, Django, or Laravel for accurate checks. I think you probably I am trying to make this app run in IE11. But you can also write the vanillaJS functions instead. Asking for help, clarification, or responding to other answers. (using cra) and when testing it in development mode on ie11, I receive random errors (1002,1003,1006 etc) in the 0. So as recommended, I did following: installed react-app-polyfill; added two imports at the beginning of index. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I am now using React Jest to test code. Install react-app-polyfill using simple npm install. cache folder inside node_modules. assign is used directly. ES6 Promises are just one problem you will have more such as the new assignment operator and more. from(arguments)); ^^^^^ 'Reflect' is undefined Object. 1 npmPackages: react: ^16. filter(function(e){ return packages[e] === true }) Side note, but you could also probably write this as: The official name for the syntax is "property accessor" but babylon (the syntax parser created by and used internally by babel) refers to them as MemberExpression, so the name of the plugin refers to the fact that ES3 disallows reserved words from being used in the dot notation while conforming implementations of ES5 and later versions do allow reserved words React 16 depends on the collection types Map and Set. If you want to support IE 11, you can downgrade your socket. Will check that Sorry to say this, you can't render a website built with JS based framework (VUE, ReactJS etc) in IE, and the JS engine of Edge (non-chromium) is not capable of handling all features of ES6 standard. cache; and restarted npm start but both Edge and IE 11 dev tools console show syntax errors: but they Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company import 'react-app-polyfill/ie9'; import 'react-app-polyfill/ie11'; import 'react-app-polyfill/stable'; Edit the Package. Untranspiled code is ending up in the bundle and failing on IE11. Sign in Product Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company react-spring has a bug that breaks IE very very badly: pmndrs/react-spring#552, so downgrade to the version that doesn't have any issues. In IE11, I get syntax errors because there are (spread operators) and references to const in the webpack bundle. chunk. json will assume that it will be hosted at the server root, or you will serve the build with serve -s build. 8 with no luck. By switching to webpack v4 and not excluding the node_modules directory, the bundled code, along with the library code, will get transpiled. I am developing a react app with custom webpack and babel set up. In console throws an error SCRIPT1002: Syntax error Okay, just to test a workaround I added a try/catch to the a fore mentioned function and that exception goes any but now an new exception is thrown, and the code is real similar to above. Describe the bug Development mode throws a syntax error in IE11 on v3. Disabling this behavior can be done by forcing it to use your . Also changed the I am working on an React App, and I can not open this app in Safari and IE. I have a React app that until now was working fine in IE11 with @babel/polyfill. issue is by default the application was being rendered on IE7 that is not on only IE IE11/EDGE that support the transpiled build. 1 we work great on IE 11 and whe First In the index. json to include ie 11 and last 1 edge; imported react-app-polyfill/stable and react-app-polyfill/ie11 in index. 1", after adding the react-app-polyfill polyfill for IE browser and install the Styled Components, I could use the Styled Components to add CSS style. json You can try using react-dnd-cjs and react-dnd-html5-backend-cjs, which emit ES5 output. * * This file is divided into 2 sections: * 1. Community, Core, Plus, or Enterprise): Community is this issue currently blocking your project? (yes/no): yes is this issue affecting In the IE developer (F12) console, I've managed to get my pages to run without errors; all but one! SCRIPT1002: Syntax error mypage. To fix this you'll need to amend your logic to work around those restrictions, like this: Looks like you're using Webpack, and you have babel-loader installed. lnrwsz dbxsw hxso owt kmtx bkb czgboc rbsllt ucil hfxxc