pfSense

Observed on pfSense Plus 26.03.1 using a mobile touch browser.

Reproduction:
1. Add a Traffic Graphs widget to the dashboard.
2. Scroll the dashboard until a graph enters the viewport.
3. Continue scrolling until the graph leaves the viewport.
4. Tap a graph point, then scroll again.

Actual result:

• Touch scrolling creates zero-valued NVD3 tooltips at the top-left of the viewport, piled on top of one another.
• Tooltips remain visible after the graph leaves the viewport.
• Tapping a real point moves one tooltip to the correct point and shows live values, but it also remains visible after scrolling.

Expected result:

• Scrolling must not create tooltips.
• A tooltip shown by tapping a data point must disappear when the interaction ends or the graph leaves the viewport.

Cause:
The vendored NVD3 interactive guideline reads clientX/clientY directly from TouchEvent. Those coordinates live on the active or changed touch, so the existing calculation yields invalid coordinates. The guideline also lacks touchend/touchcancel cleanup. Dashboard scrolling does not otherwise dismiss an already-visible chart tooltip.

Proposed fix:

• Normalize TouchEvent to the active or changed touch before calculating guideline and tooltip positions.
• Hide interactive guideline tooltips on touchend and touchcancel.
• Hide Traffic Graphs widget tooltips on window scroll.

Validation:

• Frozen mobile reproduction failed before the change with two persistent zero-valued tooltips.
• The unchanged reproduction passes afterward with no tooltip left visible.
• Tapping a real point shows one correctly positioned tooltip with live values; scrolling hides it.
• Confirmed on the affected physical phone.

NVD3 upstream report: https://github.com/novus/nvd3/issues/2240
NVD3 upstream fix: https://github.com/novus/nvd3/pull/2241

🤖 Generated by OpenAI Codex and posted on behalf of Andre Brait.