10000 [Bug]: offscreen rendering doesn't render clicked INPUT SELECT dropdown · Issue #34047 · electron/electron · GitHub
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[Bug]: offscreen rendering doesn't render clicked INPUT SELECT dropdown #34047
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@gtalusan

Description

@gtalusan

Preflight Checklist

Electron Version

18.1.0

What operating system are you using?

Ubuntu

Operating System Version

Ubuntu 20.04

What arch are you using?

x64

Last Known Working Electron version

No response

Expected Behavior

Offscreen rendering paint events should receive events for SELECT input elements.

Actual Behavior

Sometimes an empty white box appears, or nothing happens.

Testcase Gist URL

https://gist.github.com/gtalusan/c0ad56685aeb3b2c1108fbccf6b451b4

Additional Information

Here's a screenshot when the fiddle is run with offscreen = false:

Screen Shot 2022-05-03 at 9 54 42 AM

Here are the paint event images saved to PNGs when offscreen = true:
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