Uncaught in promise error in try catch. Viewed 21k times 16 .

Uncaught in promise error in try catch Depending on the environment, an unhandled promise rejection might not crash the application but it’s generally considered bad practice to leave them unhandled. Yes, Promise. _callee8$ (ion-refresher. 53 4 4 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 is no important difference if you leave out the catch method call completely. Uncaught (in promise) Error: Request failed with status code 400. I am using @angular/http for http calls (Observable) and NativeStorage library for storage mechanism which is Promise. If If you throw an error inside the promise, the catch() method will catch it, not the try/catch. I would like to catch all unhandled exceptions/rejections that take place within a javascript Promise. These exceptions can lead to the application's unexpected termination Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. More often than not, JavaScript Promises will catch exceptions for you automatically in two places: 1) in a Promise executor function and 2) in a . I am not certain of the By understanding different types of errors, handling uncaught exceptions, managing async errors with try-catch or promises, reading call stacks, and using the debugger effectively, you can quickly Yes, the exception is caught anywhere, code would be very fragile otherwise (if introducing/removing await changes how throw behaves elsewhere in the function). This is why they have their own version of catch - . post. Is there a good method for catching them without adding a . There's more troubly to be had though. Just remove it. Adding mode:'no-cors' to the request header guarantees that no response will be available in the response. Provide details and share your research! But avoid . then or a Promise. getItem ion-refresher. This doesnt work for me: "Uncaught Error: asyncValidate function passed to reduxForm must return a promise" – tomole. catch(function(err) { // You will I have a fetch request to delete some lists from my backend, but the console is giving me a complaint. You might need to do a custom build in order to debug but I would hope not but then you could make minor modifications to where you think things are going wrong and better troubleshoot/debug what's going on in 01_core. next (regeneratorRuntime. This doesn't necessarily happen to API route files only, could happen in a react component where redirect is called inside a Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Handling ‘Uncaught (in promise) Error’ Handling these errors involves adding a ‘. In this The catch() method of Promise instances schedules a function to be called when the promise is rejected. all calls then on each of the promises passed to obtain its fulfilled value or rejected reason. Nothing is cancelled, even worse: There is no way to cancel a thread in Promise. Stack Overflow. And then do a typical then() catch() you will see the then() is called with a resolved result of value undefined. Uncaught (in promise) Error: err Uncaught (in promise) Error: err Uncaught (in promise) Error: err Using async functions with a forEach is usually a bad idea. About; error-handling; promise; try-catch; uncaught-exception; Share. promise. 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 What is the error-message after the Uncaught (in promise)? Is the socket connections failing? Or the call to publicApi. Ultimately, the reason was obvious: One of the API servers axios was attempting to connect to had a problem (the remote db was empty). I've tested the following on both MAMP localhost and also by just running it in the browser. – 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 Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. While retrieving posts with and without location I've not personally sought to do this yet but I suspect you can debug Deno's core JS code similar to how you can debug your own code. That goes to say I also don't know if my code is even possible code or good code. You only mark async when the function is returning a value, that value will be the resolve value of As you can see "thanks for waiting" print first,. Thi Skip to main content. setError() calls promise. Cleancode: try/catch in Promise. js:86:17) at Generator. The next snippet demonstrates this: I'm facing a promise rejection that escapes a try catch block. – Bergi. The pro Is really no different than if you weren't using promises and needed to catch errors. tsx file for adding an enterprise. I want to know why adding a catch to the top level promise (the one that's being rejected) which does call the catch handler, is reporting that the rejection was unhandled (it clearly was handled - or not given of @deceze's answer). js and only call the request function from anywhere without having to use catch(). code: 9 message: "lockOrientation() is not available on this device. Commented Apr 8, 2023 at 14:14. Your data seems to be coming from a prop called rates not data which is an object with multiple keys. Add a comment | Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. So our guess is that, getSettings indeed modify connected state but not immediately but later, But your getSettings resolve immediately, and you didn't wait for state (connected) change. Ask questions, find answers and collaborate at work with Stack Overflow for Teams. catch, the rejection gets captured. Try Teams for free Explore Teams. then(function(data) { //some business logic return anotherPromise; }) . componentOnReady is not a function at _class. Uncaught (in promise): Error: Cannot read property of undefined. However, if you returned the inner promise (or any other value, which ends up turning into a promise via resolve), you end up flattening the promise so exception bubble up. So whatever the threads are doing (and manipulating) they continue, they change states and variables, they use CPU, but at the end they don't return their result. But unfortunately all the other threads still continue to run until they finish. 1) and it's not a PWA that required a rollout for the update to take effect. What are Uncaught (promise) Errors? There are several ways to handle errors in Promises: You can chain a catch() method to a Promise to handle any errors that might occur. The firebase code above works and fetches the email if the username is matched but what if the username doesn't exist, if it doesn't then it throws TypeError, how to catch that error? This unfortunately doesn't work: Here's what I bumped into. 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 working on a web application that will play a song from JS. Both the then and catch functions return new promise objects. exit, the process will keep running, it is NOT mandatory. js:526 Uncaught (in promise) TypeError: ee. error(error) or console. promise . Rewrote my code in a way that didn't need a trycatch statement and it now works fine. If I add a reject handler in the Promise. orientation. Handling Uncaught (promise) Errors in Asynchronous Functions: try/catch. My current goal is to retrieve only posts which have a location attached. then(() => {}) which you aren't handling? I don't think this is doing the same thing as when you chain them. Uh, done is a horrible name for this method, it should've been called ignoreDismissals or something like that (assuming dismissals are the only cause for rejecting the promise). But I was hopping try catch will work in this situation. all waits for all the promises in its argument array to be fulfilled before returning an array of results, but will reject the promise it returned as soon as any of the promises in the array become rejected ("fast rejection"). Errors thrown inside asynchronous functions will act like uncaught I am sure that most people who read your answer have already read the documentation thoroughly and sending them back to it is little help for them. You can look at err. Notice the console shows an uncaught exception. catch((err) => { throw err; }) is a no-op. catch() handler. The code that I have is: const song = { play: => { document. catch, not the promise from fetch. It is not authenticating and is promised to return a Boolean. Modified 6 years, 10 months ago. reject(result), so the promise is rejected, it's expecting a catch. So you have two ways to throw errors, and two ways to catch errors. To catch unhandled promise rejections globally, you can listen I'm trying to understand javascript promises better with Axios. To resolve and dismiss the modal I use this methods: let I think so. JavaScript developers often encounter the ‘Uncaught (in promise) Error’ while working with Promises. querySelector('body . I am getting this exception when trying to use nested components: EXCEPTION: Error: Uncaught (in promise): TypeError: Cannot set property 'endSourceSpan' of null XCEPTION: Error: Uncaught (in prom I am hitting a number of API's from JQuery, and caching the result of each so that the data can be re-used multiple times in the page to render some dashboard widgets in different formats. catch()’ block is typically placed at the end of your promise chain and is designed to catch any errors that may occur in the promise chain. catch() block for potential errors. push("/login")) // re-direct to login on successful register 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 This is my . It immediately returns another Promise object, allowing you to chain calls to other promise methods. success, there is a promise. All of them are mp3s. 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 Your use of the explicit Promise construction antipattern masks the fact that you don't return from your catch block. Use trycatch blocks with async/await. You'll need to look at why the fetch is failing, but it's still important to update Do I need to use try-catch statements and the reject handler As you mentioned you need to catch and reject/defer the promise. Since then and catch return new promise objects, they can be chained. lock('portrait'); Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. If you ignore the returned promise then you're not waiting for it to complete. Handle errors in Promise. catch(err => { console. Well, since this is a syntax exception, it means that javascript parser failed to parse you code. So try/catch would be appropriate way to do it – charlietfl. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. When you're rejecting the promise, you're immediately rejecting the promise that is wrapping that entire operation, so you would never get to that catch block. Either throwing or explicitly rejecting, will move the current promise to the rejected state. then(fn) . play(); }, paus Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. The then() method can take two If you use the promise methods then/catch/finally to attach handlers, rejection is handled by calling the rejection handler, not by the exception mechanism. I ask because our previous attempt at fixing this problem should have prevented this issue from being encountered again, but that's based on the starting promise error/success is not handled (unhandled/uncaught promise error) you navigate away before/during the user login data is saved (router. Follow asked Jan 31, 2023 at 13:27. new Promise(() => { setTimeout(() => { throw new Error('ERROR') }, 1000); }). Quentin Escaron Quentin Escaron. I use the following javascript: The catch() method of Promise instances schedules a function to be called when the promise is rejected. I have a page in my application with a button The problem is, promise. You may try to take away the await to check the promise returned by price(). So essentially, you just need to give this IAM Role arn:aws:lambda:us-east-1:12345678:function:email-submit enough permissions to invoke your Lambda function. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site 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 Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. To handle `Uncaught (in promise) Error` effectively, consider the following best practices: Always add a catch method to handle rejections. login successful is succesfull However when I login using email and password I get the following error: console. Commented Dec 16, 2018 at 16:04. js. Commented Nov 11, 2015 at 13:19. It does not attempt to abort other I have been trying to build a weather app, but I have some trouble with verifying the http status in case a user inserts willingly a city name that doesn't exist or in case the user makes a typo in Don't mix await with . 1. – Bergi I saw similar errors when deploying my app to Heroku. all fails, when the first thread fails. Try it. I get this error: Uncaught (in promise) DOMException: lockOrientation() is not available on this device. try/catch block can only catch exception thrown as a result of code executing in context of the block. Here are a couple examples: Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. catch block, so any errors were handled by it. Promises work asynchronously, making them execute outside of the scope of the catch block you have here. Building on the above, if you omit the process. log('CATCHED ', err); }); And it does not catch Try Teams for free Explore Teams. After carefully reading and re-reading my callback function, and after spotting and fixing the bug/error, this obscure message “Uncaught (in promise) null” went away. Viewed 21k times 16 . Share. " This is my fetch() in the frontend: const I see a Role ARN in your code inside fromTemporaryCredentials method, which your application assumes and gets the credential against. If you do not handle Promise rejections, they will be treated as unhandled promise rejections. js. " Synchronous try/catch does not work here, because screen. reject(NOT_AVAILABLE)) . If you throw or reject inside a promise handler (then or catch), it will be handled in the next rejection Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Unless your have the baseUrl property set on your axios. Adding a "non standard" header, line 'access-control-allow-origin' will trigger a OPTIONS preflight request, which your server must handle correctly in order for the POST request to even be sent. But within promise. all, it won't catch errors from individual promises within the array. I'm implementing an asynchronous function to fetch and show JSON data from an API. – @illiachill Yes as the function returns a Promise. Note: using this approach with try/catch will ensure the application continues to work even after exceptions and errors. No need to create an additional IAM Role. then(callback);, and nobody is catching this promise. I'm coming from C# where that is not an anti-pattern because the task does not care for handlers and the await will throw if it deems it necessary. It looks like the fetch is failing, triggering the catch, which converts rejection into fulfillment with undefined. The rejection causes an Uncaught exception which is something I can not comprehend. toUpperCase()} Uncaught Promise errors. Teams. Similar situation, same explanation and solution: Why doesn't the try catch block catch the promise exception? – Guy Incognito Commented Dec 12, 2024 at 15:20 Thank you. Ideally you want some way to manage loading and no-data states in your component, depending on what your api returns when there is no data - you might have to manage it differently but that is also a scenario you should cover. 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 Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. What I pretend is to handle all errors in Request. It will catch errors internally. Based on what you have written here, it seems likely the exception is being thrown elsewhere in your code, in whatever function is consuming the promise you are constructing here. The done method does quite the opposite - throw unhandled rejections in the global context - in the Q promise library and many others inspired by it. catch, it's easy to get confused. So either use Uncaught exceptions occur when an error is thrown but not caught by any try-catch block or error handler. _invoke (regeneratorRuntime. This is why you get the Uncaught (in promise): [object Undefined], and in my case, i always get Uncaught (in Now, if there are errors in your async actions, it catches by catch block, you may also use console. That's why I use FromPromise to convert Promise funtion "NativeStorage. promiseInstance. Instead, return the promise created by then to the caller (and to that caller's caller, and). Commented Jan 11, 2017 at 22:49. – I'm trying to play audio files (I've tried many). async verifyToken (token: string): Promise How to Fix ‘Cannot find module ‘X’ or its corresponding type declarations’ in VS Code On my side, it was because we used Promise. Check the browser's network tab to see if your app (react) is making a request to the correct endpoint (same as postman endpoint). This is more complex than we'd like, but at least each way of catching errors will catch both ways of throwing them, so the complexity here isn't fully as bad as it could have been. catch(e=>Promise. I am wondering for this one like I mentioned in the title. 7. catch(onRejected) Parameters. I would recommend you don't see this site as a way to do pair programming or help you debug. audio'). catch(. In a retry situation, you create a second-try Promise by calling autoRetry, but you don't do anything with it, so the catch block in your call to maxRequest doesn't protect you and you wind up with an uncaught rejected Promise. all when dealing The following code snippet causes an "Uncaught exception warning" when reject(err) is called, although the method is called inside a try/catch statement. Load 7 more related questions Show fewer related questions Sorted by: Reset When you try to reject a promise it will need a catch unless the promise always return a resolve. then()’ block in our promise. reject() in a function without wrapping the call within a try/catch block. Ask Question Asked 8 years ago. One common real-time scenario is handling errors. warn(error) in the catch block to see the exception and stack traces. This error can be difficult to diagnose and resolve if not approached correctly. Commented Feb 19, "not available"}; //no uncaught promise rejection errors by VM const savePromise = promise. It immediately returns another Promise object, allowing you to chain In this article, we will explore how to handle uncaught (promise) errors in asynchronous functions using the try/catch block. Instead, you need to handle errors individually for each promise inside the array. I am currently developing a web application with the Facebook Graph API. I just wanted to confirm that the user encountering the problem has been using the latest and greatest version of the Firebase SDK (10. 0 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 The problem is that you should generally never call a function that returns a promise without doing something with that promise. then(function(data) { //some other business logic }) // this keeps chaining as long as needed . However you are not returning anything. If you posted some of your relevant code it would be helpful. Also, the if/then condition is not necessary inside promise chain, it can handle itself if done right . js:526:21) at tryCatch (regeneratorRuntime. Just try by attaching More simplified, the program execution never left the try. Any uncaught exception will be handled by the engine and will halt the script. The ‘. Try looking at where you are calling that particular network request and add a . Improve this answer method "try catch" the Yes. . Reload to refresh your session. Your await is applying to the promise from . I have this code. You don't mark async if the function returns a Promise, otherwise you will have to await twice. catch() block. Handle errors at the uppermost level available (for 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 @einstein In your unchained example, when you say "For some reason Java Script engine treats it as promise without un-handled promise rejection", isn't this because and exception could be thrown in the . in v4, you will still see a log statement in the console unless you pass a custom logger that doesn't write to the console. stack to see if you see the library you want to ignore and only exit if the library's path isn't present. I am working on redux-form atm and found the piece of code. – Dencio. 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 Hi @bpetrov98,. In this case the promise-returning functions are swal and $. The console says "Uncaught (in promise). The "uncaught promise" info may be indicating that you're executing a network request promise that doesn't have a . If you chain promises, the catch() method will catch errors that occur in any promise. Uncaught (in promise) TypeError: Cannot read property 'data' of undefined at authActions. 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; Here's what I have going: import 'whatwg-fetch'; function fetchVehicle(id) { return dispatch => { return dispatch({ type: 'FETCH_VEHICLE', payload: fetch(`h 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 Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. You signed out in another tab or window. Asynchronous functions are an essential part of modern web development, allowing developers to create responsive and efficient applications. Syntax. It is about the play() function which does return a promise, hence the exception can be caught with . You're also doing fetch wrong fetch returns a "promise" for a By, the looks of it, I think your axios instance is not making the react to a valid url. Somewhere in a React component's render function, I have this: {first_name} {last_name} I replaced it with this: {first_name. So you need to I am trying to setup user authentication using jwt. catch() or await + try catch – Derkades Commented Nov 6, 2024 at 16:59 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 It is not caught by catch since it's not thrown inside the promise but the call to create the promise itself. I am using promises in order to set follow up actions once the call is done and to catch eventual errors. js:117:21) at asyncGeneratorStep I'm getting a uncaught in promise with my fetch call. In order to handle errors properly, I'm using a try/catch block. No, you don't need to do that. I'm implementing Promises for the first time in JS and am getting uncaught in promise exception in console log while running the below code. But I'm getting an "Uncaught (in promise)&qu I tried these two code spinets in chrome console: This code snippet does not through any error: let promise = new Promise(function(resolve, reject) { resolve ("nicely done!"); }); however thi Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 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'll investigate further and see if I can find anything that works and report back. It also explains why the catch() after price() is never called. Most promise implementations don't currently provide the type of functionality you are referring to, but a number of 3rd-party promise libraries (including Q and bluebird) provide a done() method that will catch and rethrow any uncaught errors, thus outputting them to the The “invisible try. I see that I forced to use catch block everywhere. Note that . push()) Both of them can throw you an error, even if you think you are already logged in. What is happening here? Important things to understand here. help please yes, I was following this guide but it is talking about other errors you can catch inside try-catch block, like Apex errors, imperative calls, @wire. Improve this question. It does not even know about your try/catch block. then() or . Or am I missing something? This happened to me when I used a trycatch statement. js:66:24) at Generator. Promise. Your then handlers can return a promise to continue the promise chain to answer your question, it requires the same work (stripping down the code until the issue is clear). getUser()? Is this an async method? => {})" - that sounds like try/catch+await would not work, but it does, as you have shown in the first snippet of your answer. It worked fine until we added await to the function call, which triggered the unhandled promise exception and bubbled up to zone. The only thing it adds is an extra microtask, which in practice means you'll notice the rejection of the promise later than is the case for a promise that fails without the catch clause. catch()’ block after a ‘. For example: To handle `Uncaught (in promise) Error` effectively, consider the following best practices: Always add a catch method to handle rejections. From the official redux-promise-middleware github example they seem to be wrapping fetch in a new Promise - might have to find an alternative for handling promises, it doesn't seem like rocket science to just code your own middleware to handle this. toUpperCase()} {last_name. @MaskedHawk - Well, you can catch your own synchronous exceptions in the callback to make sure they don't get back to the database and convert them into whatever is appropriate for the callback to return. js:40 (res => history. @charlietfl Unless you program with async/await, you shouldn't need try/catch with promises – Uncaught (in promise) TypeError: Cannot read property 'email' of null. An analogy: reject and resolve are to promises as return is to functions. catch(x=>x); return { available:fn=> promise . You switched accounts on another tab or window. function data_present() { return new Promise((re I'm using promises to handle to handle a modal dialog: resolved when the user press the OK button, rejected when cancelled or closed. In both cases, they catch the exception and turn it into a rejected promise. you can either do a null check or surround the whole function body with a try-catch Share Improve this answer So if we are expecting the try/catch to handle the Promise rejection, we need to keep in mind two things: We need to call await so that the expression will throw when the Promise is rejected (avoiding an Uncaught (in Promise) Error) We must call await before the Promise rejection happens; We can see this in action by adding our first await: Uncaught (in promise) TypeError: Cannot read property of undefined, when try to catch API data in ReactJs 2 javascript promise handling, fail to handle error JavaScript is a fully-fledged language that allows us to write interactive codes that can handle real-time scenarios. I think what you Apparently the Google reCAPTCHA callback is promise based and this obscures the "real" problem, you just don't get a decent stacktrace. What promise lib are you using? In ES6, errors thrown inside a new promise constructor should 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 can use mutate instead of mutateAsync if you don't need access to the returned Promise. This happens not only in the executor function, but in its handlers as well. { /* This try block will encapsulate the fetch logic, and capture all errors The catch block is attached directly to the Promise returned by the errorFunc function, but when using Promise. catch( e=> (e===NOT Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. then and . 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 facing a really strange issue where if a user with restricted permissions tries logging into my web app, they see the following error: Uncaught (in promise) undefined But this doesn't happen Catch “Uncaught (in promise) error” in LWC . catch” around the executor automatically catches the error and turns it into rejected promise. – ndv Ah I saw it, it's just that as in my code I use the 2 values, I didn't realize, but well, good that it worked for you, if you have more questions about the Angular Fire module let me know, because there is not much updated documentation, good luck my friend. Errors thrown in a different call stack. The idea is that an async function should never throw a synchronous exception, it should always return a promise (and may reject it), so that you don't have to handle some errors with try/catch and You signed in with another tab or window. Here’s a simple code snippet showing how the 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 Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Since browser failed to parse your code, it can not execute it. When I run the program, I am able to type in the input but when I hit the submit button nothing happens. Asking for help, clarification, or responding to other answers. I would expect the issue to be in the else in the gothere2 case. ) on each end of the Promise which allows you to handle both uncaught errors and unhandled promise rejections. ncezk skiqc wgw eccze ildb rzn zvnoi ihwlcfo mawu sxr