FA-35870 / Tab interfaces / Member archive

Linked pane scroll: proportional scroll · case 05

The tab workspace reports an incorrect proportional scroll.

Member previewVariant 5 · 3 implementations · 6 checks per implementation

Case contract

Linked views of one document synchronize only scroll events from the elected source; map proportional content positions into the peer range and suppress echoed tokens.

Why this case matters

Offline tab/panel workspace behavior; no browser or desktop framework is emulated.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
workspace regression 0	`[true, true, true, 200, 500, 20]`	`[true, true, true, 500, 500, 20]`	Failed

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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