# Shared Screen Appears Completely Black

**URL:** <https://devforum.zoom.us/t/shared-screen-appears-completely-black/133500>\
**Category:** Web\
**Created:** [June 2, 2025, 8:25am UTC](https://devforum.zoom.us/t/shared-screen-appears-completely-black/133500 "2025-06-02T08:25:56Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![leo\_tristan](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/leo_tristan/32/49720_2.png) [@leo\_tristan](https://devforum.zoom.us/u/leo_tristan)\
**Post date:** [June 2, 2025, 8:25am UTC](https://devforum.zoom.us/t/shared-screen-appears-completely-black/133500/1 "2025-06-02T08:25:57Z")

</div>

**Description**

We have two normal users (User A and User B) and one BOT user participating in a Zoom meeting session.

When User A shares their screen:

- User B **can** see the shared screen.
- The BOT user **cannot** see the shared screen.

We’re trying to determine why the BOT user cannot view the shared screen.  
Could this issue be related to client-side logic, or is it potentially a problem with the Zoom Web Video SDK?

**Session ID:** `DMEUqp5QR/6MmAm4lF7ojw==`

Any insights would be greatly appreciated. Thank you!

**Which Web Video SDK version?**  
2.1.0

**Video SDK Code Snippets**

```auto
    let canvasElement = document.getElementById('zoom_share_canvas_remote_view');
    this.hideShareView();
    canvasElement.style.display = 'block';
    await stream.startShareView(canvasElement, userId);

```

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

- OS: Linux (Headless browser)
- Browser: Chrome
- Browser Version: 135

---

<div class="post-metadata">

**Author:** ![vic.yang](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/vic.yang/32/24656_2.png) [@vic.yang](https://devforum.zoom.us/u/vic.yang)\
**Post date:** [June 4, 2025, 10:28am UTC](https://devforum.zoom.us/t/shared-screen-appears-completely-black/133500/2 "2025-06-04T10:28:52Z")

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Hi @leo_tristan

Thanks for your feedback.

> DMEUqp5QR/6MmAm4lF7ojw==

After analyzing the logs, we didn’t find any obvious issues with screen sharing. Could you share a recording with us for further investigation?

Thanks  
Vic

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<div class="post-metadata">

**Author:** ![leo\_tristan](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/leo_tristan/32/49720_2.png) [@leo\_tristan](https://devforum.zoom.us/u/leo_tristan)\
**Post date:** [June 19, 2025, 3:34am UTC](https://devforum.zoom.us/t/shared-screen-appears-completely-black/133500/3 "2025-06-19T03:34:34Z")

</div>

Hi @vic.yang  
Sorry for the late reply. We’ve received permission to share the recording with you.

This is the recorded video, though we’re not certain it will help troubleshoot the issue.

```auto
https://drive.google.com/file/d/1g9kh9wHfjCKCMmtL3uvNjH2zN3cdBzbN/view?usp=sharing

```

**Issue context:**  
The expected behavior was for the shared video to display prominently on the main screen.

**Steps leading to the issue:**

- Two users joined the meeting.
- User 1 shared a YouTube video, but due to network lag or CPU too high, the video didn’t play.
- User 1 then switched to sharing a different browser tab.

**Note:**  
This issue only occurred once. We’ve attempted to reproduce it multiple times but haven’t been able to.

It might be difficult to investigate, but we appreciate your support in advance!

---

<div class="post-metadata">

**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:** [June 19, 2026, 3:35am UTC](https://devforum.zoom.us/t/shared-screen-appears-completely-black/133500/4 "2026-06-19T03:35:04Z")

</div>

Closed on June 19, 2026, 3:35am UTC

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