Similar to bug 78046, which asks for a way to see grid lines in layout tests, it would be nice if the Web Inspector had a way to cause grid lines for pages that use line-grid to be shown. This would be handy for web developers that are using line-grid.
Is this property even implemented? Since it's non-standard, not sure it should be part of a developer workflow, or at least the implementation should not be specific to this property. A uniform grid could be implemented using the inspector overlay.
Migrating, but remains low priority because it's not used very widely AFAICT.
<rdar://problem/16020697>