Unexpected token export chrome extension javascript javascript; google-chrome-extension; tabs; Share. Editor: VSC. This may seem familiar, but I can't find anything about itsure I've found stuff about "Unexpected Token Illegal," but these circumstances don't relate enough for those solutions to make sense. Often could not understand why this was an issue in Chrome until I came across to a statement which said that the current version of JavaScript engine in Chrome doesn't support multiline strings which are wrapped in single quotes and have new line (\n) characters in them. 532 Node. When using ECMAScript 6 modules from a Node. export let myData = {} I am then importing it into main. 13. js above. ) and rendering The ‘export’ Token in JavaScript. js determines whether something is a CJS module or an ESM module by using its closes package. document. CommonJS modules doesn't support export syntax. Unexpected token 'export' while importing dynamically a js file. See browser compat table on MDN and this Node issue. Commented Apr 8, 2017 at 20:12. I was wondering if this is possible. 703 To use the export/import keyword, you need to activate the ESM specification. js; es6 This is a specification, a newer "version" of ecmascript (javascript), it has new features like import and export and object destructuring Problem every time i use the word export in TS with unexpected token export. js application. babelrc like this: javascript; reactjs; or ask your own question. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Files have ts extension. babel. js extension in your files, and in the script tag add type = "module". For example: console. Uncaught SyntaxError: Unexpected identifier (Chrome extension) 4. html - line 3: Unexpected token {How to make it work? PS. but by the Chrome extension React Developer Tool. it. I cant upgrade their Chrome version, unfortunately. js This is for javascript execution; express. Which you can do by following this repl. json file "module". Manifest V3 Chrome extensions have support for ES modules in background service workers. Opening the html using the chrome as it is with the JSDelivery tag throws the following error: Uncaught SyntaxError: Unexpected token ' export ' (at vision_bundle. Create a file and name it . js, because register can't undestand what is ESM and what is non ESM, so don't transpile files, we are using interpret + rechoir under the hood to transpile files. log( 'Print my Name from index. /EmployeeSearch. js to correctly load a module. The code was 2 JavaScript files: Export and Import files. This is a file called index. js' which doesn't seem to work. Asking for help, clarification, or responding to other answers. I am trying to connect three file rule. The export statement is used The code was 2 JavaScript files: Export and Import files. Uncaught SyntaxError: Unexpected token import. " it seems like there is something else that I need to do in order to get in browser jsx transform working, but I'm not sure what it is. Now when I run (using webstorm and chrome 62) above code, I get the following error, reported by the (chrome) debugger: "Uncaught SyntaxError: Unexpected token import" What's happening here? I checked for javascript compliance on mdn and it tells me import is supported by chrome 61 and newer. json to tell This Stack Overflow page addresses the "syntax error: unexpected token" issue in JavaScript. js that might be affecting module resolution. This works fine in Firefox, but in Google Chrome it shows:- Uncaught SyntaxError: Unexpected token = My Code, function I have spent a whole day on this, googling and searching for answers but still could not figure out. Sometimes, having both a . This needs to be application/json instead of text/html. js and after that action will be get executed. My code is a bit long and it works well in Firefox but gets "Uncaught SyntaxError: Unexpected token u " from Chrome. For the new style stuff you have to explicitly tell Node that a source file is a new-style module. g. log( 'In index. Unexpected token 'export' on below line. js, you need to import config. it forum post by lukenzy. js, got the following error: function serveStatic(response,cache,absPath) ^^^^^ SyntaxError: Cross origin requests are only supported for protocol schemes: http, data, chrome-extension, https, chrome-extension-resource. Follow Disabling Chrome cache for website development. I have tried export {} / import {} from 'module. The "SyntaxError: Unexpected token" in JavaScript occurs when the code contains a character or symbol that the JavaScript engine does not expect, often due to a typo or syntax mistake. So your import statement must be the actual name of your file. Provide details and share your research! But avoid . js using import and export in javaScript. js in my content-script. Ask Question Asked 14 years, 2 months ago. That code you're looking at is before compiling/bundling so it's not what is installed. Related. babelrc and a babel. To treat it as a CommonJS script, rename it to use the '. 3538. Follow asked Apr 10, 2024 at 13:24. The functions in event. Uncaught SyntaxError: Unexpected token < Unexpected token '<' on valid javascript. js' However, upon activating the extension, I get the error: Uncaught SyntaxError: Unexpected token 'export' which points to the export line in foreground. config. My code works fine with Safari, Internet Explorer v. Importing javascript modules. Improve this answer. So you may need to use CommonJS export syntax for this. main. 1332 You have some commas at the end of your variable declarations that should be semi colons ';' and some missing var keywords from the beginning of you variable declarations. js doesn't support both extensions at the same time - you need to have a package. react js unexpected token export on export{default as Cards} 0. import { EmployeeSearchControl } from ". The extension is supposed to add an authorization header to web requests. /DifferenceHashBuilder'; ^^^^^ SyntaxError: Unexpected token 'export' Following is my tsconfig. The actual extension is inside the dist directory after you run npm run build and it doesn't use ES-modules. js that has 2 here's what my imports for React Navigation look like: import { NavigationContainer } from "@react-navigation/native"; import { createStackNavigator } from "@react-navigation/stack"; Sorry for delay, I think you don't undestand how a register works, if you have webpack. js can cause issues. Improve this question. e, given below to resolve the “Uncaught SyntaxError Unexpected token ‘export'” issue. Check for Duplicate Babel Configurations: Make sure there are no conflicting Babel configurations in your project. Still, during the time of calling the js file, it was prompting me an uncaught exception in the console. js will get the data from the browser and when the and condition gets fulfilled then it will run the function from the rule. 70. at first line- Node. 1 but the nullish coalescing operator (??), is relatively new and was added in node v14. it uses node v12. 0. The following is a JSON I return from an ASP (classic) page. updated: I tried adding to index. Actual result: errors: module. 0) ERROR. exports = {num}; rather than export num = 500; index. json : You can optionally specify an extra field of "type": "module" to include the service worker as an ES Module, which allows you to import further code. Everything worked fine when the js was into separate functions but as soon as I moved it into a class i started getting the Unexpected token '{' in chrome extension. Commenting out code to 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 export function flatten (target, opts) { ^^^^^ SyntaxError: Unexpected token 'export' I made sure my jest was properly installed and set up, as per Next. missionControl. js:1 . ts? I suspect that you set the value on the browser site, not on the background site. The ‘export’ token in JavaScript is a special keyword that is used in modules to export functions, objects, or values to be used in other files or modules. 62. I have tried to find an answer to this solution but the answers I have found are usually to do with adding 'module' to a script tag (which doesnt apply in my case since I'm not writing browser code I'm failing hard in trying to import/export functions from one file to another with a Chrome Extension. Using typescript. addEventListener('DOMContentLoaded', function(){ export let k = 12; }) then it shows Unexpected token 'export'. To fix this, we need to change the ‘type’ property in our package. Talking with @JReinhold and we think it is likely #22247 that is the culprit. at the_path/test_entry. export function add_authorization_header(request) Chrome extension refused to evaluate a string as JavaScript because 'unsafe-eval' in emscripten generated file. . log("Hello); What if I use incorrect import/export syntax? Follow the correct syntax for modules: Example: // Wrong: import x from "module"; export x; // Right: import x from "module Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. js to the from string? In Node JS we usually write this as: import { sum } Chrome extension: Uncaught SyntaxError: Unexpected token return 0 script. /foreground. 2704 (Windows 7 0. " My application creates a new window (lets I have a javascript function which accept an optional parameter. I am running an AJAX call in my MooTools script, this works fine in Firefox but in Chrome I am getting a Uncaught SyntaxError: Unexpected token : error, I cannot determine why. svelte)? Another potential issue is the wrong extension. js' , name); }; printMyName( 'Amol' ); Code If you have issues here then you might run into the Unexpected token 'export' error. 3 Note how they add the extension . js docs, but still same issue. ts as follows: import { myData } from '. I am trying to build a chrome extension using Rust and Wasm. However, Chrome throws the "SyntaxError: Unexpected token" message - only in specific combinations (it's about chained 's). You've said that these configs are outside the project, so there's no package. Why it works before - let's look at changelog of Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. To activate ESM Uncaught SyntaxError: Invalid or unexpected token (Chrome Extension) Ask Question Asked 2 years, 9 months ago. If you have wrong content-type, you may need to configure the settings of your webserver Idk if i come late to the party and you already figured out the answer by yourself, but i was having the same problem a few minutes ago and since i found your thread while i was looking for the solution, i come back to answer it with the solution that worked for me. js, action. updated: Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https. Parsing error: Unexpected keyword 'export' Hot Network Questions When I export at the top of the file such as. If you link to a local version of the Embedding API library, or load your web application from the file system, you could see When using ECMAScript 6 modules from the browser, use the . js:41 Making a chat application referencing via Node in action, and upon running the server. The export keyword is a part of JavaScript specification that allows you to export a Refactor your code to use the module CommonJS syntax i. JSON Chrome Extension Problem. html: First up, Uncaught SyntaxError: Unexpected token 'export' tells us that you're trying to use module syntax inside a classic script. By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". It is probably CORS blocking that can happen using file protocol according to some articles. 92 (Official Build) 32-bit), I receive this error: Uncaught SyntaxError: Unexpected token . For example, if your file is named works2 (without any extension) then you can do: As you can see, we are trying to use an ES6 class in Node. Controls"; export class EmployeeSearchComponent extends EmployeeSearchControl { public static GetName() { //code } } The code is compiling but, when I run it I am getting error, Typescript - Uncaught SyntaxError: Unexpected token 'export' Other details are given below, Bundle Config: This is my first time fiddling with a Chrome extension and it should be pretty simple, but I can't quite get all the pieces to fit together. 1. json with {"type":"module"} for Node. Google Chrome Extension Javascript Unexpected Token Illegal. However you can use window object to access the variable from anywhere. And export function hello() { return 'Hello'; } Expected result: alert with "Hello" text in it. In that script, I have a code like this to detect the URL of the webpage I've opened (in order to You can only export stuff only at the top-level of the file (ie not inside a function). 0. js chunk of expected file size), but then Karma opens Chrome and as soon as the page is loaded I'm greeted with the following error: Chrome 51. Share. Required fields are marked * Then I used this as a skeleton for a next project, therefore not changing the "route_to_main_page" actually on the new project (different URL) became a "route_to_external_url" so any 404 errors within your code (missing css stylesheets, js libraries) would return the "Uncaught SyntaxError: Unexpected token <". export let k = 12; Or. The err ES6 module specification does not support guessing of file extensions. I solved it partially by right-clicking the extension icon in the toolbar, clicking "Manage extension" and then enabling "Allow I was facing the same issue recently. js also does not automatically guess file extension. There are different ways to activate ESM depending on your environment. replit Inside it, copy and paste the following code: SyntaxError: Unexpected Token ‘export’ Have you ever been working on a JavaScript project and suddenly been met with the dreaded “SyntaxError: Unexpected Token ‘export'” error? SyntaxError Unexpected token ‘export’ Now you can use the ES6 modules import/export syntax in your Node. This could happen if you’re using an older I was trying to copy a JavaScript code that I wrote on a online learning platform. js - line 1: Unexpected token export. js: It will fix the Unexpected token ‘export’ error. Viewed 6k times 1 . 0 I am creating a Chrome extension using typescript. I currently work on a chrome extension designed to scrape pdf files from specific websites, modify them (splitting them in multiple file, remove sensitive information from them etc. js, which does not yet support the syntax. js (or App. i keep getting errors, "Uncaught SyntaxError: Unexpected token 'export'" and "Uncaught SyntaxError: Cannot use import statement 'null' has been blocked by CORS policy: Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension Content-type. js - SyntaxError: Unexpected token import. – Pointy I'm creating a Chrome extension as a test and bundle my js with webpack. If you are making an HTTP request, you can also try to set the Accept header to application/json to indicate to your server that you expect a JSON Jest is a JavaScript testing framework that is designed to be simple, fast, and efficient. It is widely used by developers to test their JavaScript code. You can still use ES-modules directly if you declare a background "page" (it's not documented anymore but it's still supported) html where your js files should be loaded with Then i'm start the app by command ng serve in console i see error: VM1018:2297 Uncaught SyntaxError: Unexpected token export at eval (<anonymous>) at webpackJsonp. So to use the ?? operator you need to update node in repl. But Chrome also does not show CORS warning in the console in this case - which is strange. The webpack build succeeds without a hitch (and emits test_entry. Learn how to fix the "unexpected token 'export'" error in JavaScript with this guide. Vitest bypasses it if the package is imported directly, but it will not work if package is loaded by another package. The part Unexpected token ',' tells you which token was unexpected—in this case, a Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. I use tsc CLI to transpile TS files to JS files. Anyway, I think @Nina's answer is the correct one since it gives a solution to both problems. If you have Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 22. @Ginden, What do you mean by Chrome supporting import and export syntax? I'm getting Unexpected token export – Pacerier. JavaScript - How to make ES6 imports work in browser? You have to choose between old-style require() import/export and new-style ES2015 import export; they're different. When JSON data is sent over the network, the Content-Type header should be set to application/json. The problem is that by default, Node. My problem is the following: I have one script that's loaded as a content script from the manifest. Why this is happening and export { default as DifferenceHashBuilder } from '. The one bellow is also gives the same error A SyntaxError: Unexpected token occurs when the JavaScript engine encounters a character or token it doesn’t expect during code parsing. Tested in Chrome 67. js' However, upon compiling and activating the extension, I get the error: Uncaught SyntaxError: Unexpected token 'export' which points to the export line in foreground. js environment, use the extension . js as follows: import { myData } from '. js. I created a simple react app with a simple message, then I tried to import the bpmn-js library but as soon as I import it I got Your email address will not be published. 8. Node. When I used live-server provided by vs-code as an extension, the issue is gone. // This is index. 10. The Chrome documentation explains how to enable ES modules by adding a field to manifest. Chrome's developer manual states that: "Many functions in the extension system take an optional windowId parameter, which defaults to the current window. Ask Question Asked 1 month ago. I'm trying to use functions from module. js:1:880347) Describe the expected behaviour Describe the bug Build runs fine but on page load we get a white screen with "Uncaught SyntaxError: Unexpected token 'export'" from each of the addons. mjs in But when I try it on my client Chrome version (69. it's not plain JavaScript. json file from “commonjs” to “module”: If your server sends back the correct data, make sure it's Content-Type response header is set to application/json and not text/html. Installed nodejs, angular, typescript etc. While import is indeed part of ES6, it is unfortunately not yet supported in NodeJS by default, and has only very recently landed support in browsers. However, when I export after the DOMContentLoaded event such as. Activate ESM support in the browser. How can I share the variable to main. - I use chrome 62 for testing this. js file console . I'm working on a npm package called foobar, locally, to allow me to make changes or modifications in real time without having to publish/unpublish to improve development time and sanity. Example: > localStorage['foo'] undefined > JSON. fuyi Getting Unexpected Token Export. json in the Network tab. I also changed the module key in tsconfig What is "export default" in JavaScript? node. The situations that can cause the error boil down to attempting to use export which is ES6 module syntax without the The ‘syntaxerror: unexpected token ‘export’ error is a common JavaScript error that typically occurs when you’re trying to use ES6 module syntax in an environment that doesn’t support it. Check the Content-Type of manifest. Follow edited Mar 20, 2024 at 6:37. js (February 2017):. js, not config. following the udemy course ive bought (too bad they dont reply to questions there). The error “Unexpected token ’export’” occurs when you run JavaScript code in an environment that doesn’t support the export keyword. The Problem. Agreed, it won't work, but the question was about Invalid or unexpected token. Ensure Correct Module Resolution: Check if there are any custom Webpack configurations in your next. repl. Related questions. json. None of the popular solutions here were working for me either. It is an essential part of the module system in JavaScript, allowing developers to organize and share code across different files. I enabled Experimental JavaScript on Chrome (ver. The js path which I provided inside my HTML file was correct. It works on 99% of the inputs, but for the following JSON text, it throws the error: add babel-plugin-transform-export-extensions plugin to your . javascript; webpack; google-chrome-extension; or ask your own so i am trying to get practice using import and export with javascript. cjs' file extension. That script's name is script. js file. javascript; typescript; es6-modules; tsc; Share. 77) on: How to import ES6 modules in content script for Chrome Extension. ELEMENT_NODE Chrome (v70) has some kind of issues when working with import syntax on the local files served using file protocol. Both pages have a different window object and therefore a different localStorage so what happens is that you background page tries to read a value that wasn't set. If you were initializing the Embedding API using JavaScript (as opposed to the <tableau-Viz> web component), Unexpected token 'export' `http`, `data`, `chrome`, `chrome-extension`, `chrome-untrusted`, `https`. Wrong: use babel import { bla } from 'blub' Correct: use babel import { bla } from 'blub' The error `Syntaxerror: unexpected token ‘export’` will be encoutered when you try to use the export keyword in a version of nodejs that is prior to v14. 355 2 2 Unexpected token o" Related questions. However, while running npm i, Hi there, I’m making an app with bpmn-js and reactjs. I'm trying to display an image selected from the local machine and I need the location of that image for a JavaScript function. In a normal web page, when you append a The Uncaught SyntaxError: Unexpected token 'export' error occurs when the JavaScript interpreter encounters an export statement where it shouldn't be. parse(undefined) SyntaxError: Unexpected token ILLEGAL And then How to fix the syntaxError: unexpected token ‘export’ in JavaScript? If you are new to programming and don’t know where to start and practice then visiting Codedamn will be a great decision you can make. Work is in progress but it is going to take some time — We’re currently looking at I was using npm live-server package. So much as a space in front of it will deactivate it, followed by the js engine tripping over your export statement or, similar ```unexpected token export````. But I'm unable to get the location. From James M Snell's Update on ES6 Modules in Node. It's working perfectly fine now. js, event. Modified 12 years ago. Therefore, in order to comply with the specification node. 3). 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'm trying my hand an making a chrome extension but having a problem with importing a module. js This is for creating servers using node. js:1 Uncaught SyntaxError: Unexpected token . export { k }; let k = 12; It works just fine. Holo. To make it work, multiline string need to be wrapped in double quotes. js' ); export const printMyName(name) => { console . In proje uncaught SyntaxError: Unexpected token But this only worked on Firefox Quantum (ver. It's because you are using CommonJS modules by default in NodeJS. 3497. tfsky iwfibtssw yomelnf hrvnr rmksem yxet zfax hiaww cbchy kykdwb kcns fpyxvxh dcu aynu tgijx