1961489 - Many warnings in Console: "Empty string passed to getElementById()". 3pane

Status: RESOLVED FIXED

(Thunderbird :: Folder and Message Lists, defect)

Description

[Mark Barnes [:WoofGrrrr]]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0

Steps to reproduce:

Release Channel 137.0.2

I just looked at the Console

Actual results:

I am seeing many warnings:

Empty string passed to getElementById(). 3pane

I have one line where the count is (49). Another where it is (72). And others with smaller counts.

I don't know how to tell where they're coming from.

Expected results:

Just thought someone might be interested.

Comment 1

[Magnus Melin [:mkmelin]]

Do you get that in Help | Troubleshoot mode?

Comment 2

[Mark Barnes [:WoofGrrrr]]

I will restart in troubleshoot mode and report back.

Comment 3

[Mark Barnes [:WoofGrrrr]]

Well, wouldn't you know it. I restarted in troubleshoot mode with all extensions disabled, and didn't see the error. Then I re-enabled each extensions, one-by-one, and still no error. Even after I restarted Thunderbird. Oh, well. Sorry.

Comment 4

[Mark Barnes [:WoofGrrrr]]

Nope. I'm seeing it again, Attaching screenshot

Comment 5

[Mark Barnes [:WoofGrrrr]]

Attachment: getElementByID Warnigs 4-22-2025 11-07-18 AM.png

Comment 6

[Magnus Melin [:mkmelin]]

Attachment: Bug 1961489 - fix Empty string passed to getElementById() warnings due to missing row ids. r=freaktechnik

Error can easily be seen by running comm/mail/test/browser/message-header/browser_messageHeader.js

It seems to be caused as a side-effect of accessing "aria-activedescendant" for ids not set.
That probably had some (not so nice) accessibility implications.

Comment 7

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/comm-central/rev/4e6e5f2638e9
fix Empty string passed to getElementById() warnings due to missing row ids. r=freaktechnik