665728 - Untrusted events should trigger datalist popup

Status: NEW

(Core :: DOM: Core & HTML, defect, P5)

Description

[Vivien Nicolas (:vingtetun) (:21) - (NOT reading bugmails, needinfo? please)]

Attachment: testcase

Trying to open an autocomplete list by simulating a VK_DOWN on a input with an attached datalist does not work from the web content side.

I know a decision has been taken to not show autocomplete popup on untrusted event in bug 527935 but since all the data of a datalist already lives on the page I don't think this bug applies to it.

As a result the testcase should work.

Comment 1

[Dev Doshi]

I am encountering this issue too. (same testcase as Vivien Nicolas)

My goal is to open the autocomplete list for an <input type="text" list="some-datalist"/> when it receives focus. Since the datalist contents are on the page, why can't I do this (even with autocomplete="off")? I understand the security implications if the autocomplete values are from the browser, but in this case they are from the datalist element on the page.

I would appreciate any assistance. 
Thanks in advance,
Dev

Comment 2

[Firefox Bug Husbandry Bot]

https://bugzilla.mozilla.org/show_bug.cgi?id=1472046

Move all DOM bugs that haven't been updated in more than 3 years and has no one currently assigned to P5.

If you have questions, please contact :mdaly.

Comment 3

[Alex Vincent [:WeirdAl]]

If there's still interest in this, please submit a revised testcase.

Uncaught TypeError: evt.initKeyEvent is not a function
    show https://bug665728.bmoattachments.org/attachment.cgi?id=540596:9
    onload https://bug665728.bmoattachments.org/attachment.cgi?id=540596:1
attachment.cgi:9:13
    show https://bug665728.bmoattachments.org/attachment.cgi?id=540596:9
    onload https://bug665728.bmoattachments.org/attachment.cgi?id=540596:1

Comment 4

[buovjaga]

Attachment: Updated testcase, now using current event methods

Would be nice to get this implemented as there are many people wondering how to work around this in Firefox:
https://stackoverflow.com/a/70558223/3057764
https://stackoverflow.com/questions/75944168/datalist-suggestions-on-input-in-firefox