Fixing ChunkLoadErrors in JavaScript
Jodi Jang
—What are Chunk Load Errors?
ChunkLoadErrors occur when the JavaScript chunks (bundles) that an application is trying to load encounter issues during the loading process. Some common causes are dynamic imports, version mismatching, and code splitting issues.
How to Fix Chunk Load Errors?
Since ChunkLoadErrors can occur due to various reasons, there are multiple ways to fix these errors.
Old Files Cannot be Found
When a new deploy occurs, the files are changed. Some users may have the older files downloaded, if they do not refresh their page. This causes the ChunkLoadError since the chunks cannot be found.
There are a few possible solutions if this is the problem:
- Do not cache files
- Do not dynamically import files
- Use service workers to serve older files after a new deploy
- Capture the exception and prompt the user to refresh the page
Framework-Specific Reasons
Next.js: Version is not Compatible
Some users experienced ChunkLoadErrors being resolved in Next.js projects after changing their Next.js version. Many have seen that downgrading to next@13.3.4 has solved the Chunk Load Error issues.
Filtering Chunk Load Errors
If you use Sentry, you can add an inbound filter for Chunk Load Errors if you do not want to see them. You can manage these filters in [Project] > Settings > Inbound Filters.
- YoutubeHow Sentry.io saved me from disaster
- ResourcesImprove Web Browser Performance - Find the JavaScript code causing slowdowns
- SentryJavascript Error Monitoring & Tracing
- ResourcesJavaScript Frontend Error Monitoring 101
- Syntax.fmListen to the Syntax Podcast
- Listen to the Syntax Podcast
![Syntax.fm logo]()
Tasty treats for web developers brought to you by Sentry. Get tips and tricks from Wes Bos and Scott Tolinski.
SEE EPISODES
Considered “not bad” by 4 million developers and more than 100,000 organizations worldwide, Sentry provides code-level observability to many of the world’s best-known companies like Disney, Peloton, Cloudflare, Eventbrite, Slack, Supercell, and Rockstar Games. Each month we process billions of exceptions from the most popular products on the internet.
A peek at your privacy
Here’s a quick look at how Sentry handles your personal information (PII).
×Who we collect PII from
We collect PII about people browsing our website, users of the Sentry service, prospective customers, and people who otherwise interact with us.
What if my PII is included in data sent to Sentry by a Sentry customer (e.g., someone using Sentry to monitor their app)? In this case you have to contact the Sentry customer (e.g., the maker of the app). We do not control the data that is sent to us through the Sentry service for the purposes of application monitoring.
Am I included?PII we may collect about you
- PII provided by you and related to your
- Account, profile, and login
- Requests and inquiries
- Purchases
- PII collected from your device and usage
- PII collected from third parties (e.g., social media)
How we use your PII
- To operate our site and service
- To protect and improve our site and service
- To provide customer care and support
- To communicate with you
- For other purposes (that we inform you of at collection)
Third parties who receive your PII
We may disclose your PII to the following type of recipients:
- Subsidiaries and other affiliates
- Service providers
- Partners (go-to-market, analytics)
- Third-party platforms (when you connect them to our service)
- Governmental authorities (where necessary)
- An actual or potential buyer
We use cookies (but not for advertising)
- We do not use advertising or targeting cookies
- We use necessary cookies to run and improve our site and service
- You can disable cookies but this can impact your use or access to certain parts of our site and service
Know your rights
You may have the following rights related to your PII:
- Access, correct, and update
- Object to or restrict processing
- Port over
- Opt-out of marketing
- Be forgotten by Sentry
- Withdraw your consent
- Complain about us
If you have any questions or concerns about your privacy at Sentry, please email us at compliance@sentry.io.
If you are a California resident, see our Supplemental notice.