1865735 - When hovering over a Firefox Suggest heading, NVDA announces only a part of the text

Status: NEW

(Core :: Disability Access APIs, defect)

Description

[Anna Yeddi [:ayeddi]]

STR:

1. Have NVDA running
2. Open a new tab and navigate to the url bar
3. Click on the url bar and start typing anything, i.e. t
4. In the updated list of autosuggestions, locate the Firefox Suggest group heading and hover over an empty part of this text's line and observe the announcement

Expected:

1. Nothing is announced at all since there is no text under the pointer OR
2. The Firefox Suggest text is announced fully

Actual:

1. The full text leaf is never announced, usually NVDA announces Firefox, but sometimes it's Firefox Su, or Firefo (as in the video attached), or Firefox Sugges (in the video attached, the NVDA output includes this version too), or other variations of the string

Comment 1

[Anna Yeddi [:ayeddi]]

Attachment: 2023-11-20_Firefox_Suggests_420.mov

Video of hovering over the Firefox Suggests row (apologies for the quality and shakiness, Windows denied making proper video on its own)

Comment 2

[Anna Yeddi [:ayeddi]]

Attachment: Highlighting the NVDA output with 2 unexpected announcements within one session.png

Comment 3

[James Teh [:Jamie]]

Triage note: This is not a CtW bug because the URL bar is in the parent process.

Comment 4

[Morgan Reschenberg [:morgan]]

I wonder if the label is getting automatically generated, and we're running into a race condition with the AT reading it?
I know we encountered something similar with reading the labels of nested menu items quickly -- I'll see if I can find that bug.

Comment 5

[James Teh [:Jamie]]

If that were the case, I don't understand why we would get part of the text (as opposed to none of it). Unless it's being added to the DOM character by character...