1876420 - scrollbar gutter at the left side shifts the Inspector's highlighter box

Status: RESOLVED DUPLICATE of bug 1874091

(DevTools :: Inspector, defect)

Description

[Tooru Fujisawa [:arai]]

Attachment: testcase with scrollbar-gutter on left

Steps to Reproduce:

1. Run Firefox Nightly 124.0a1 (2024-01-24) (64-bit) on macOS
2. Open attached HTML file
3. Open DevTools Inspector
4. Inspect the "Inspect me" text

Actual Result:
The highlighter box doesn't cover the element.
it looks like it's shifted to right by the amount of the scrollbar gutter's width.
(see the attachment in the next comment)

Expected Result:
The highlighter box covers the element

The same thing can be observed when inspecting elements on BMO page right now

Comment 1

[Tooru Fujisawa [:arai]]

Attachment: result