# Cannot start share view due to OPERATION\_TIMEOUT error **URL:** \ **Category:** Web\ **Tags:** video-sdk\ **Created:** [September 23, 2025, 7:38am UTC](https://devforum.zoom.us/t/cannot-start-share-view-due-to-operation-timeout-error/137590 "2025-09-23T07:38:58Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![phuongnv1](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/phuongnv1/32/54805_2.png) [@phuongnv1](https://devforum.zoom.us/u/phuongnv1)\ **Post date:** [September 23, 2025, 7:38am UTC](https://devforum.zoom.us/t/cannot-start-share-view-due-to-operation-timeout-error/137590/1 "2025-09-23T07:38:58Z")
**Description** When user A shares the screen by calling `stream.startShareScreen(videoElement)`, other users in the room receive the `active-share-change` event and then call `stream.startShareView(canvas, activeUserId)`. User A has successfully started sharing, however other users in the room encounter an error when calling `startShareView`: ```javascript {"type":"OPERATION_TIMEOUT","errorCode":1} ``` This issue is quite difficult to reproduce and has only occurred once so far. Please check for me with the session ID: `YjevI/qFSCi1e4iXtF3XuA==` **Browser Console Error** ```javascript {"type":"OPERATION_TIMEOUT","errorCode":1} ``` **Which Web Video SDK version?** 2.2.5 **Device:** - Device: Windows PC - OS: Window 10 version 22H2 - Browser: Chrome - Browser Version: 140.0.7339.129 ---
**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:** [September 29, 2025, 2:36am UTC](https://devforum.zoom.us/t/cannot-start-share-view-due-to-operation-timeout-error/137590/2 "2025-09-29T02:36:08Z")
Hey @phuongnv1 Thanks for your feedback. > YjevI/qFSCi1e4iXtF3XuA== From the log analysis, it seems that when calling `stream.startShareView`, the result was not awaited with then or await before calling `stream.stopShareView`. This caused a race condition, where the earlier method did not successfully reach a completed state and instead timed out. The logs also show that subsequent calls to `stream.startShareView` succeeded, so the sharing feature is working properly. Thanks Vic ---
**Author:** ![phuongnv1](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/phuongnv1/32/54805_2.png) [@phuongnv1](https://devforum.zoom.us/u/phuongnv1)\ **Post date:** [September 29, 2025, 8:19am UTC](https://devforum.zoom.us/t/cannot-start-share-view-due-to-operation-timeout-error/137590/3 "2025-09-29T08:19:11Z")
Hey @vic.yang Thank you for your feedback. > From the log analysis, it seems that when calling `stream.startShareView`, the result was not awaited with then or await before calling `stream.stopShareView`. I understand your point, but after checking the code I noticed that there is already an `await`. I still don’t understand why there is a difference between the sharing attempts. For session **NqnbCwjjSYCCnrd7T/kTDw==** , could you please explain why the first two shares were successful but the third one failed as mentioned in this issue? Ideally, it would be helpful if you could also add timing information for each call so that I can better understand where the problem lies. I would greatly appreciate your response. Thanks Phuong ---
**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:** [September 29, 2025, 8:57am UTC](https://devforum.zoom.us/t/cannot-start-share-view-due-to-operation-timeout-error/137590/4 "2025-09-29T08:57:49Z")
Hi @phuongnv1 > YjevI/qFSCi1e4iXtF3XuA== 2025-09-23T03:57:36.566 startShareView 16782336 2025-09-23T03:57:36.688 stopShareView 2025-09-23T03:57:36.691 stopShareView success 2025-09-23T03:57:36.693 startShareView 16782336 2025-09-23T03:58:18.315 stopShareView 2025-09-23T03:58:18.317 stopShareView success 2025-09-23T03:58:36.591 startShareView timeout ❌ Thanks Vic ---
**Author:** ![phuongnv1](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/phuongnv1/32/54805_2.png) [@phuongnv1](https://devforum.zoom.us/u/phuongnv1)\ **Post date:** [September 30, 2025, 2:33am UTC](https://devforum.zoom.us/t/cannot-start-share-view-due-to-operation-timeout-error/137590/5 "2025-09-30T02:33:10Z")
Hey @vic.yang Thank you for your feedback. I’m trying to check the timing of calls with session ID `NqnbCwjjSYCCnrd7T/kTDw==`. According to our logs, this session makes 6 calls at 3 different time intervals. 2025-09-29T03:04:21.088 stopShareView 2025-09-29T03:04:21.092 startShareView 16785408 2025-09-29T03:04:21.140 stopShareView 2025-09-29T03:04:21.147 startShareView 16785408 =\> This time it was successful. 2025-09-29T03:04:56.905 stopShareView 2025-09-29T03:04:56.910 startShareView 16786432 2025-09-29T03:04:57.007 stopShareView 2025-09-29T03:04:57.016 startShareView 16786432 =\> This time it was successful. 2025-09-29T03:06:00.074 stopShareView 2025-09-29T03:06:00.078 startShareView 16787456 2025-09-29T03:06:00.160 stopShareView 2025-09-29T03:06:00.162 startShareView 16787456 =\> This time I got 2 errors from startShareView: ```javascript {"type":"OPERATION_TIMEOUT","errorCode":1} ``` Could you explain the timing between the calls to help me understand why the first two intervals were successful but the third one failed? I look forward to your response. Thanks Phuong ---
**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:** [September 30, 2025, 6:18am UTC](https://devforum.zoom.us/t/cannot-start-share-view-due-to-operation-timeout-error/137590/6 "2025-09-30T06:18:42Z")
Hi @phuongnv1 > Could you explain the timing between the calls to help me understand why the first two intervals were successful but the third one failed? Sorry, I can’t explain why there is this difference, but as I mentioned earlier, we recommend waiting for `startShareView` to get resolved before calling `stopShareView`; otherwise, a race condition may occur. Thanks Vic ---
**Author:** ![marvinbene](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/marvinbene/32/72867_2.png) [@marvinbene](https://devforum.zoom.us/u/marvinbene)\ **Post date:** [December 17, 2025, 1:07pm UTC](https://devforum.zoom.us/t/cannot-start-share-view-due-to-operation-timeout-error/137590/7 "2025-12-17T13:07:09Z")
We’re also having this issue. We’re listening for the `active-share-change` event, and if the share is active we try to start the share view. But as already mentioned, we also get `{type: "OPERATION_TIMEOUT", errorCode: 1}`. It doesn’t happen for all sessions so its also difficult to reproduce. These are the sessions where this is happened `SLLabZO8RhGfYZF4d+TKYw==` `X6w/Oo1TTaiinFKt1cd4Lg==` `2ohGn8ipTHeNg1YBHRLK0g==` **Which Web Video SDK version?** 2.3.0 **Device:** - Device: Windows PC - OS: Windows 10+ - Browser: Chrome - Browser Version: 143 ---
**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:** [December 19, 2025, 3:15pm UTC](https://devforum.zoom.us/t/cannot-start-share-view-due-to-operation-timeout-error/137590/8 "2025-12-19T15:15:42Z")
Hey @marvinbene Thanks for your feedback. > SLLabZO8RhGfYZF4d+TKYw== Sorry, this session is already over a month old, and it’s difficult for us to get the corresponding detailed logs. > X6w/Oo1TTaiinFKt1cd4Lg== After analyzing the logs, we found that the Native SDK user shared content with a size of 0×0. When the Chrome user tried to render it using `stream.startShareView`, it couldn’t be drawn, so an error was thrown. > 2ohGn8ipTHeNg1YBHRLK0g== Around 2025-12-16T21:59:43 GMT, the content shared by the Native SDK user was normal and had a valid size, but by 2025-12-16T22:01:54 GMT, the size became 0×0 again, which caused rendering issues on the receiving side. Thanks Vic