# Captcha error and white screen on test page

**URL:** <https://devforum.zoom.us/t/captcha-error-and-white-screen-on-test-page/22605>\
**Category:** Web\
**Created:** [June 29, 2020, 12:59am UTC](https://devforum.zoom.us/t/captcha-error-and-white-screen-on-test-page/22605 "2020-06-29T00:59:13Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![cquibada](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/cquibada/32/13063_2.png) [@cquibada](https://devforum.zoom.us/u/cquibada)\
**Post date:** [June 29, 2020, 12:59am UTC](https://devforum.zoom.us/t/captcha-error-and-white-screen-on-test-page/22605/1 "2020-06-29T00:59:13Z")

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**Description**  
White screen when loading the zoom web sdk. Is there any additional code that needs to be added for 1.7.9? An updated documentation would really help along side with the update instead of having it updated a few days later. Thanks

**Error**  
See screenshot

**Which version?**  
1.7.9

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

1. Go to ‘…’
2. Click on ‘…’
3. Scroll down to ‘…’
4. See error

**Screenshots**

 ![zoom-white-screen](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/a/ace67d33de60008b7e0cf23f1ad67e80f7acc5a6.png)

**Additional context**  
Existing code was working 1.7.8 I just change the CDN versions to 1.7.9

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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:** [June 29, 2020, 4:44pm UTC](https://devforum.zoom.us/t/captcha-error-and-white-screen-on-test-page/22605/2 "2020-06-29T16:44:11Z")

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Hey @cquibada,

Please see my post here:

> [@SDK 1.7.9 - Recaptcha feature documentation](https://devforum.zoom.us/t/sdk-1-7-9-recaptcha-feature-documentation/22618/7):
>
> Hey @darragh.duffy, @event.tech, @harald.glanzer, @nvivot, Here is the docs for the recaptcha feature: [https://marketplace.zoom.us/docs/sdk/native-sdks/web/essential/start-join-meeting#joining-meetings-with-recaptcha-feature](https://marketplace.zoom.us/docs/sdk/native-sdks/web/essential/start-join-meeting#joining-meetings-with-recaptcha-feature) Thanks, Tommy

* * *

If you would like to request your account be whitelisted to remove the recaptcha feature, please fill out this form:

Thanks,  
Tommy

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<div class="post-metadata">

**Author:** ![DeveloperBot](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developerbot/32/12632_2.png) [@DeveloperBot](https://devforum.zoom.us/u/DeveloperBot)\
**Post date:** [August 21, 2020, 10:29pm UTC](https://devforum.zoom.us/t/captcha-error-and-white-screen-on-test-page/22605/3 "2020-08-21T22:29:26Z")

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Closed on August 21, 2020, 10:29pm UTC