Screen sharing button not working in Web SDK

[matti]

Description
On Chrome 87.0.4280.141 (Official Build) (x86_64) on macOS 10.15.7, the “Share Screen” button in the Zoom Web SDK (1.8.6) does not seem to work.

Error

• When clicking on the button, nothing happens. It was expected that a dialog would appear.

Which version?
1.8.6

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

1. Run the sample web application locally.
2. Click on “Join Audio by Computer”
3. Click on “Share Screen”

Device (please complete the following information):

• Device: MacBook Pro
• OS: macOS
• Version: 10.15.7
• Browser: Chrome 87.0.4280.141

Additional context

The SDK is embedded within an IFRAME in a React application, it is hosted via a HTTPS connection.
In theory, the Content Security Policy on the CDN or the IFRAME might limit the access to certain browser APIs, but the issue can be reproduced locally - independently whether the SDK is displayed standalone or within an IFRAME.

If there is a possibility to hide the screen sharing functionality, this would resolve this issue as well (for my use case).

[tommy]

Hey @matti ,

We are aware of this, and have seen this happen also when the Web SDK is embedded in a web view:

Electron + WebSDK Screensharing not working (@zoomus/websdk v1.7.10)

Description We are attempting to use the zoom websdk in an electron app. Specifically we are attempting to open a new BrowserWindow in electron with the url pointing to our zoom websdk app. Right now in browser the audio, video, and screensharing functionalities are working as expected. In our electron app, we have had to request permissions for access to camera and microphone on ios but now audio and video are working properly. Screensharing still does not work even though we have also updated…

Since the Web SDK is not designed to work within an iFrame, my best suggestion for you is to use it outside of the iFrame and screen sharing should work.

Thanks,
Tommy

[matti]

Hello @tommy , thank you for the message.

I can reproduce the issue also when the SDK is running outside an IFRAME. The button does not do anything.

In order to get more information, I would need additional information on the root cause as no errors are logged. Is it due to a lack of permissions inside an IFRAME? Are you aware of a Content Security Policy preventing access to screen sharing?

[tommy]

Hey @matti ,

During the initial screen share, have you provided access for your browser? Perhaps you can check your computer and browser permissions.

Thanks,
Tommy