1836472 - Microsoft IME does not switch to private mode if <input type="search"> has focus in the private window

Status: UNCONFIRMED

(Core :: DOM: UI Events & Focus Handling, defect, P2)

Description

[6k64x4ma]

Attachment: test.html

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/114.0

Steps to reproduce:

• Open the attached file in the private window and focus on the first input field.

Actual results:

• Microsoft IME does not automatically switch to private mode when the first input field gets focus.

Expected results:

• IME should stay in private mode while I'm using Firefox's private window.

regression range:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=de63e64b9090789daea9ad11d3cd11b4f284afe5&tochange=acc1632e35c7afc826d16bea8e1dd812b4f5117c
I think Bug 1618759 is suspicious.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

:m_kato, since you are the author of the regressor, bug 1618759, could you take a look? Also, could you set the severity field?

For more information, please visit BugBot documentation.

Comment 2

[6k64x4ma]

forgot to mention:
I've only tested with Windows 10 + Microsoft IME.
Microsoft Edge worked as expected.

Comment 3

[Makoto Kato [:m_kato]]

I guess that this bug is IME side. When we pass multiple input scope values (when <input type=search with private mode, IS_SEARCH and IS_PRIVATE are passed). some values doesn't seem to be referenced.

Comment 4

[6k64x4ma]

Indeed, while using Edge's InPrivate window, the type of input has no effect on the virtual keyboard.

Comment 5

[Makoto Kato [:m_kato]]

Windows 11 24H2 seems to fix this issue. No longer reproduce with Windows 11 24H2