Open Bug 1744944 Opened 8 months ago Updated 6 days ago

error console flooded by "This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “<!DOCTYPE html>”."

Categories

(Thunderbird :: General, defect, P3)

Thunderbird 96

Tracking

(thunderbird_esr91 unaffected, thunderbird_esr102 affected)

Tracking Status
thunderbird_esr91 --- unaffected
thunderbird_esr102 --- affected

People

(Reporter: wsmwk, Unassigned)

References

(Depends on 1 open bug, Regression)

Details

(Keywords: regression)

This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “<!DOCTYPE html>”.

On average a couple times a minute. Don't know when it started.

It's from bug 1238861

Keywords: regression
Regressed by: 1238861
Version: Thunderbird 95 → Thunderbird 96

I'm still seeing this as of 101.0b4 on Windows 10 (64 bit)

This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “<!DOCTYPE html>”.
Inbox
This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “<!DOCTYPE html>”.
{71f0fd45-ab45-4d03-86f7-db293fb40947}
This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “<!DOCTYPE html>”.
blank
This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “<!DOCTYPE html>”.
Inbox
...

Also appears along with "This page is in Almost Standards Mode. Page layout may be impacted. For Standards Mode use “<!DOCTYPE html>”." in the latest 102.0a1.

As pointed out in comment 1 it is from bug 1238861, and if you click the Learn More link, you learn more.

During mochitest run of FULL DEBUG version of C-C TB, I get 3389 lines of similar warning lines from many tests.
3K+ lines are a bit too excessive IMHO.
It makes the log analysis a bit difficult.

(In reply to ISHIKAWA, Chiaki from comment #4)

During mochitest run of FULL DEBUG version of C-C TB, I get 3389 lines of similar warning lines from many tests.
3K+ lines are a bit too excessive IMHO.
It makes the log analysis a bit difficult.

Massive needless console clutter looks like something we should avoid for our own sake.
Magnus, is disabling the error messages for Thunderbird as in 4-liner patch of comment 5 acceptable to you?
If yes, can you assign someone?

Flags: needinfo?(mkmelin+mozilla)
Severity: -- → S4
Priority: -- → P3

I don't think that's a good approach. I was looking at bug 1429491 last week. That is really the root of most of this problem

Flags: needinfo?(mkmelin+mozilla)
Depends on: 1429491
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