2002069 - Port bug 543435: Make initial about:blank loading into iframe not get overwritten by an async channel load

Status: RESOLVED FIXED

(Thunderbird :: Upstream Synchronization, defect, P1)

Description

[Martin Giger [:freaktechnik]]

This change has broken most of our mochitests, it looks like our tab browser handling needs to be updated for this change.

Comment 1

[Geoff Lankow (:darktrojan)]

Attachment: Bug 2002069 part 1 - Fix code tripped up by initial about:blank. r=#thunderbird-reviewers

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/comm-central/rev/1ca9ca54839f
part 1 - Fix code tripped up by initial about:blank. r=tobyp

Comment 3

[Geoff Lankow (:darktrojan)]

Attachment: Bug 2002069 part 2 - Fix more code tripped up by initial about:blank. r=#thunderbird-reviewers

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/comm-central/rev/ed74ea3bc864
part 2 - Fix more code tripped up by initial about:blank. r=sking

Comment 5

[Intermittent Failures Robot]

8 failures were associated with this bug in the last 7 days.

Repository breakdown:

• comm-central: 8

Table

	no_variant
linux1804-x86_64/ccov	1
linux1804-x86_64/debug	1
linux1804-x86_64/opt	3
linux2404-x86_64/debug	1
linux2404-x86_64/opt	2

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002069&startday=2025-11-24&endday=2025-11-30&tree=all

Comment 6

[Henri Sivonen (:hsivonen)]

As a heads-up, in bug 2003720 we're planning on backing bug 543435 out of beta right after beta has branched. I'm sorry about the Thunderbird impact.

Comment 7

[Corey Bryant]

@Henri, Thanks for the heads up.

I'm going to go ahead and add this to our "uplift" queue so that we can track backouts on our end.

@darktrojan, Please let me know if you have any concerns.

Comment 8

[Corey Bryant]

Comment on attachment 9528864 [details]
Bug 2002069 part 1 - Fix code tripped up by initial about:blank. r=#thunderbird-reviewers

[Triage Comment]
Approved for beta (backout)

Comment 9

[Corey Bryant]

Comment on attachment 9528898 [details]
Bug 2002069 part 2 - Fix more code tripped up by initial about:blank. r=#thunderbird-reviewers

[Triage Comment]
Approved for beta (backout)

Comment 10

[Stephen King (:sking)]

This was backed out of 147 beta, changed milestone to 148

Comment 11

[Geoff Lankow (:darktrojan)]

Fine by me.