# WebSDK - Webinar registration enabled failing

**URL:** <https://devforum.zoom.us/t/websdk-webinar-registration-enabled-failing/48406>\
**Category:** Web\
**Created:** [April 20, 2021, 3:04pm UTC](https://devforum.zoom.us/t/websdk-webinar-registration-enabled-failing/48406 "2021-04-20T15:04:54Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![blas.castellano](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/blas.castellano/32/26098_2.png) [@blas.castellano](https://devforum.zoom.us/u/blas.castellano)\
**Post date:** [April 20, 2021, 3:04pm UTC](https://devforum.zoom.us/t/websdk-webinar-registration-enabled-failing/48406/1 "2021-04-20T15:04:54Z")

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**Description**  
Webinars with “Registration” option required are returning an error when joining.

**Error**  
When joining to a webinar having “Registration” setting required and using the Web SDK we get an error from the server with a JSON similar to this one `{ errorCode: 3099, errorMessage: "0:https://us02web.zoom.us/webinar/register/XXXXXXXX", status: false }`. The error code is 3099 and I couldn’t find it in the documentation to know the reason. The problem is that the URL we receive from the server in the response is prepended with `0:` and the button “Register” that appears after click in to join is redirecting the user to a wrong url.

**Which Web Client SDK version?**  
1.9.0, tested with 1.9.1 and is failing as well.

**To Reproduce(If applicable)**  
Steps to reproduce the behavior:

1. Create a Webinar
2. Enable “Registration” setting to be required.
3. Load the webinar in the WebSDK app
4. Click to join the webinar.
5. A JsonP request is made and an error is returned with an URL prepended with `0:`
6. Click “Register” button, the user is not properly redirected to Zoom site.

**Device (please complete the following information):**

- Browser: Chrome
- Browser Version 89.0.4389.128 (Official Build) (x86\_64)

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**Author:** ![donte.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/donte.zoom/32/24412_2.png) [@donte.zoom](https://devforum.zoom.us/u/donte.zoom)\
**Post date:** [April 22, 2021, 12:34am UTC](https://devforum.zoom.us/t/websdk-webinar-registration-enabled-failing/48406/2 "2021-04-22T00:34:32Z")

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Hi, @blas.castellano,

Thank you for posting in the Developer Forum. Would you be able to send an email to [developersupport@zoom.us](mailto:developersupport@zoom.us) with a link to this thread? I’ll troubleshoot this issue from there.

In that email, please include a the JSon response body and a screenshot of the error you are seeing.

Best,  
Donte

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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:** [May 22, 2021, 10:35am UTC](https://devforum.zoom.us/t/websdk-webinar-registration-enabled-failing/48406/3 "2021-05-22T10:35:33Z")

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Closed on May 22, 2021, 10:35am UTC

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