[Broken Website] Wikipedia table header transparent background if higher than window

[Benjamin-Loison]

Prerequisites

• I searched for any existing report about this website issue to avoid opening a duplicate.
• I can reproduce this website issue in a new, unmodified web browser profile with Dark Reader installed as the only extension.

Website Issue Description

See Improve_websites_thanks_to_open_source/issues/660#issuecomment-6106591.

Website Address

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Steps To Reproduce

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Screenshots

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Operating System

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Web Browser name and version

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Dark Reader version

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Additional Context

No response