RDP Client: screen turns white after a resize event - DOMException: Failed to execute 'putImageData' on 'CanvasRenderingContext2D': The source has been detached

[uedvt359]

Expected behavior:

the session should continue to work.

Current behavior:

When alt-tabbing, I sometimes get a resolution change of +/- 1px. Sometimes, this causes the following exception in the devtools console:

DOMException: Failed to execute 'putImageData' on 'CanvasRenderingContext2D': The source has been detached

then, the screen turns white and the session needs to be disconnected (using the "..." menu) and restarted to work again. This is shown in the devtools (chrome 125 for windows):

I don't have a screenshot ready, but firefox shows a slightly different error message: it complains that width and height are invalid (again for putImageData' on 'CanvasRenderingContext2D)

this may or may not be related to #42006, which i reported earlier.

Bug details:

• Teleport version: 15.3.715.3.5
• Recreation steps
• Debug logs

[zmb3]

This should have been fixed by #41492

[uedvt359]

apologies, i should have checked the latest version first (i didn't at first, as i did not find anything relevant in the changelog). i upgraded to 15.4.0 and will close this ticket, unless it manifests again. thank you for your quick response.

[zmb3]

Well, the fix was in 15.3.6, so if you are still seeing it on 15.3.7 then it's an incomplete fix. I'll reopen this so the team can investigate.

cc @probakowski @ibeckermayer

[uedvt359]

i re-checked which teleport version i was running, and it turns out it was 15.3.5. i was switching back and forth between versions, and must have accidentally stayed on an older release. sorry - i should have noticed this before.