# JavaScript and CSS Chunk Loading Errors in Zoom Meeting SDK

**URL:** <https://devforum.zoom.us/t/javascript-and-css-chunk-loading-errors-in-zoom-meeting-sdk/124082>\
**Category:** Web\
**Created:** [January 7, 2025, 12:04pm UTC](https://devforum.zoom.us/t/javascript-and-css-chunk-loading-errors-in-zoom-meeting-sdk/124082 "2025-01-07T12:04:19Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![developertest169](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developertest169/32/66159_2.png) [@developertest169](https://devforum.zoom.us/u/developertest169)\
**Post date:** [January 7, 2025, 12:04pm UTC](https://devforum.zoom.us/t/javascript-and-css-chunk-loading-errors-in-zoom-meeting-sdk/124082/1 "2025-01-07T12:04:19Z")

</div>

I am experiencing issues with JavaScript and CSS chunk loading when updating the Zoom Meeting SDK in my project. The current SDK 3.1.2 version works fine, but these issues occur when updating to newer versions (e.g., 3.6.0, 3.7.0, 3.8.0, and 3.11.0). Below are the errors encountered:

CSS Chunk Loading Error:

Uncaught (in promise) Error: Loading CSS chunk 8355 failed.  
([https://source.zoom.us/3.7.0/ui/8355.zoom-meetingsdk.css](https://source.zoom.us/3.7.0/ui/8355.zoom-meetingsdk.css))

JavaScript Chunk Loading Error:

Uncaught (in promise) ChunkLoadError: Loading chunk 986 failed.  
(missing: [https://source.zoom.us/3.8.0/ui/zoomus-websdk-zoommtgMain.umd.min.js](https://source.zoom.us/3.8.0/ui/zoomus-websdk-zoommtgMain.umd.min.js))

Below is the JS code before the init function:

import { ZoomMtg } from “@zoom/meetingsdk”;

ZoomMtg.setZoomJSLib(‘[https://source.zoom.us/3.7.0/lib](https://source.zoom.us/3.7.0/lib)’, ‘/av’);  
ZoomMtg.preLoadWasm();  
ZoomMtg.prepareWebSDK();

Please confirm if these issues are related to specific SDK versions and guide on resolving the errors.

---

<div class="post-metadata">

**Author:** ![niju7489](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/niju7489/32/61172_2.png) [@niju7489](https://devforum.zoom.us/u/niju7489)\
**Post date:** [January 14, 2025, 11:06am UTC](https://devforum.zoom.us/t/javascript-and-css-chunk-loading-errors-in-zoom-meeting-sdk/124082/2 "2025-01-14T11:06:37Z")

</div>

Same Error in production.But it does not occur in local environemnt.Did you find any solutions?

---

<div class="post-metadata">

**Author:** ![developertest169](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developertest169/32/66159_2.png) [@developertest169](https://devforum.zoom.us/u/developertest169)\
**Post date:** [February 4, 2025, 11:04am UTC](https://devforum.zoom.us/t/javascript-and-css-chunk-loading-errors-in-zoom-meeting-sdk/124082/3 "2025-02-04T11:04:34Z")

</div>

The issue was resolved after upgrading the Zoom Meeting SDK to version 3.11.0.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [March 6, 2025, 9:04pm UTC](https://devforum.zoom.us/t/javascript-and-css-chunk-loading-errors-in-zoom-meeting-sdk/124082/4 "2025-03-06T21:04:51Z")

</div>

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.