# Web SDK 1.8.5 throws errors on Windows

**URL:** <https://devforum.zoom.us/t/web-sdk-1-8-5-throws-errors-on-windows/39800>\
**Category:** Web\
**Created:** [January 6, 2021, 3:51am UTC](https://devforum.zoom.us/t/web-sdk-1-8-5-throws-errors-on-windows/39800 "2021-01-06T03:51:58Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![eunsu.dev](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/eunsu.dev/32/20804_2.png) [@eunsu.dev](https://devforum.zoom.us/u/eunsu.dev)\
**Post date:** [January 6, 2021, 3:51am UTC](https://devforum.zoom.us/t/web-sdk-1-8-5-throws-errors-on-windows/39800/1 "2021-01-06T03:51:58Z")

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**Description**  
I use sentry to track errors thrown from my web application. I noticed that some errors are threw on Windows environment. The details is described below:

1. Unspecified error  
This error was threw on transpiled `a.onload` function from `./node_modules/@zoomus/websdk/dist/zoomus-websdk.umd.min.js` on IE11, WindowOS only. Transpiled javascript code:

```auto
// [Zoom Meeting Web Client WebSDK] 1.8.5_20201221_ES6_release - Monday, December 21st, 2020, 3:37:14 PM  
{snip} n(e,t,n,o){var r=n.x,i=n.y,a=new Image;a.onload=function(){a&&e.drawImage(a,r,i),a=null},a.onerror=function(){a=null},a.src="data:image/".co 

```

1. Range Error: offset is out of bounds  
This error was threw by `Uint8Array.set` in anonymous function from `https://dmogdx0jrul3u.cloudfront.net/1.8.5/lib/av/6206_js_media.min.js`. which is used by `ZooMtg.setZoomJSLib()` as library’s path. The error occurs on only WindowOS but chromium based browsers(Chrome, Edge, Whale)

**Error**

1. `Error: unspecified error`
2. `RangeError: offset is out of bounds`

**Which version?**  
Web SDK 1.8.5

**Screenshots**

1. Unspecified Error  

2. Range Error

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**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [January 6, 2021, 8:19pm UTC](https://devforum.zoom.us/t/web-sdk-1-8-5-throws-errors-on-windows/39800/2 "2021-01-06T20:19:31Z")

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Hey @eunsu.dev,

Thanks for reporting this. Our Web SDK Engineering team is looking into it. I will provide you with updates here. (CS-2764)

-Tommy

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**Author:** ![eunsu.dev](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/eunsu.dev/32/20804_2.png) [@eunsu.dev](https://devforum.zoom.us/u/eunsu.dev)\
**Post date:** [January 7, 2021, 2:12am UTC](https://devforum.zoom.us/t/web-sdk-1-8-5-throws-errors-on-windows/39800/3 "2021-01-07T02:12:17Z")

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Thanks for your supporting 🙂  
I’ll keep an eye on the latest updates.

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**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\
**Post date:** [January 7, 2021, 11:17pm UTC](https://devforum.zoom.us/t/web-sdk-1-8-5-throws-errors-on-windows/39800/4 "2021-01-07T23:17:10Z")

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Hey @eunsu.dev,

I’m glad to hear that @tommy was able to assist in this. We’ll be sure to update you when we have more informaiton.

Thanks,  
Max

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**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:** [February 7, 2021, 9:17am UTC](https://devforum.zoom.us/t/web-sdk-1-8-5-throws-errors-on-windows/39800/5 "2021-02-07T09:17:20Z")

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Closed on February 7, 2021, 9:17am UTC

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