FA-36604 / Tab interfaces / Member archive

Panel viewport transform: panel local x · case 04

The tab workspace reports an incorrect panel local x.

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

An embedded tab panel reports content coordinates after subtracting pane origin and strip height, dividing by zoom, then adding that view scroll offsets.

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	`[1320, 720, 155, 370, 200, 135]`	`[920, 720, 155, 370, 200, 135]`	Failed

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

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