# Share screen button is not working in webinars **URL:** \ **Category:** Web\ **Tags:** webinar\ **Created:** [September 30, 2021, 10:40pm UTC](https://devforum.zoom.us/t/share-screen-button-is-not-working-in-webinars/58228 "2021-09-30T22:40:06Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![giancarlo1](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/giancarlo1/32/25030_2.png) [@giancarlo1](https://devforum.zoom.us/u/giancarlo1)\ **Post date:** [September 30, 2021, 10:40pm UTC](https://devforum.zoom.us/t/share-screen-button-is-not-working-in-webinars/58228/1 "2021-09-30T22:40:06Z")
**Description** The share screen button doesn’t work. **Error** There are no errors, nothing happens when it’s clicked **Which Web Meeting SDK version?** 1.9.9 **To Reproduce(If applicable)** Steps to reproduce the behavior: 1. Join a webinar as a panelist 2. Click the Share Screen **Screenshots** **Device (please complete the following information):** - Device: Desktop - OS: Windows - Browser: Chrome, Edge - Browser Version: 94 **Additional context** Web isolation is enabled, the video works well ---
**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:** [October 1, 2021, 10:15pm UTC](https://devforum.zoom.us/t/share-screen-button-is-not-working-in-webinars/58228/2 "2021-10-01T22:15:37Z")
Hey @giancarlo1 , Can you please share a screenshot of the issue, and any errors in the browser console? Thanks, Tommy ---
**Author:** ![giancarlo1](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/giancarlo1/32/25030_2.png) [@giancarlo1](https://devforum.zoom.us/u/giancarlo1)\ **Post date:** [October 4, 2021, 6:24pm UTC](https://devforum.zoom.us/t/share-screen-button-is-not-working-in-webinars/58228/3 "2021-10-04T18:24:06Z")
@tommy We found that on Firefox, the following message is displayed" `Your browser is preventing access to your Share Screen` So it seems it’s related to a missing Policy. We have enabled cross-origin isolation, the video and everything else works well. The ShareScreen works well on Chrome 93. We do have the Zoom WebSDK embedded into an iframe, maybe for that case, we need to add another policy? Thank you ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/b/a/bad17994953281acec6cd717a7a81aea8215ff1b.png) ---
**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:** [October 4, 2021, 6:46pm UTC](https://devforum.zoom.us/t/share-screen-button-is-not-working-in-webinars/58228/4 "2021-10-04T18:46:13Z")
Hey @giancarlo1 , > [@giancarlo1](#): > > We do have the Zoom WebSDK embedded into an iframe, maybe for that case, we need to add another policy? That could be the issue. Embedding the Web Meeting SDK in an iFrame is not supported. It could also be that you have not allowed your browser to screen share: ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/9/5/95212077d13e2d7c9e72d3e2a45510213f7ef563.jpeg) ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/f/0/f013975a70ae69310503b8a169ed5c07ab0caba6.jpeg) -Tommy ---
**Author:** ![giancarlo1](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/giancarlo1/32/25030_2.png) [@giancarlo1](https://devforum.zoom.us/u/giancarlo1)\ **Post date:** [October 8, 2021, 9:39pm UTC](https://devforum.zoom.us/t/share-screen-button-is-not-working-in-webinars/58228/5 "2021-10-08T21:39:29Z")
Hey @tommy thanks for your reply. The browser has the needed permissions, share screen works without embedding the Zoom WebSDK into an iframe. Sharing the screen from an iframe works in Chrome 93 but it’s not working on Chrome 94, probably because of the recent updates. I’ve played with the cross-origin policies too but it’s still the same and I’m not sure if that’s the correct path. Do you have any idea what could be the issue? I know it’s not supported but any comments would be appreciated! ---
**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:** [October 11, 2021, 6:14pm UTC](https://devforum.zoom.us/t/share-screen-button-is-not-working-in-webinars/58228/6 "2021-10-11T18:14:14Z")
Hey @giancarlo1 > [@giancarlo1](#): > > Sharing the screen from an iframe works in Chrome 93 but it’s not working on Chrome 94, probably because of the recent updates. I’ve played with the cross-origin policies too but it’s still the same and I’m not sure if that’s the correct path. > > Do you have any idea what could be the issue? I know it’s not supported but any comments would be appreciated! Unfortunately embedding the Web Meeting SDK into an iFrame is not supported. The browser + Zoom is blocking this from working. -Tommy ---
**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:** [November 11, 2021, 4:14am UTC](https://devforum.zoom.us/t/share-screen-button-is-not-working-in-webinars/58228/7 "2021-11-11T04:14:26Z")
Closed on November 11, 2021, 4:14am UTC This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.