1506038 - Flash of unstyled content (FOUC) when loading DocBook XML page

Status: RESOLVED DUPLICATE of bug 1986042

(Core :: XSLT, defect, P3)

Description

[Chris Peterson [:cpeterson]]

Peter, this bug is a regression from bug 1387427. I bisected this bug to this regression range:

https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=b49e691cd02e13c963206dacb86f56f63f2413eb&tochange=853c2a64f47e6f55e6e99e0b91cef02e1a5b103a

STR:
1. Load https://www.haiku-os.org/docs/HIG/index.xml

ACTUAL RESULT:
The page text is displayed unstyled, filling the whole window for a moment before the CSS is applied,

EXPECTED RESULT:
There is no FOUC when loading this page in Chrome, Edge, or IE11. I'm using Windows 10.

Comment 1

[Liz Henry (:lizzard)]

Neha, can you help find an owner to investigate this regression? No rush, I am just catching up on some bug triage. Thanks!

Comment 2

[Neha Kochar [:neha]]

(In reply to Liz Henry (:lizzard) (PTO Dec 28) from comment #1)
> Neha, can you help find an owner to investigate this regression? No rush, I
> am just catching up on some bug triage. Thanks!

Liz, I'll discuss this with :peterv once he's back from PTO.

Comment 3

[Liz Henry (:lizzard)]

Happy to take a patch in nightly 67, or potentially, in beta 66 for this.
Marking as fix-optional to remove it from weekly regression triage, since there is a priority assigned.

Comment 4

[Neha Kochar [:neha]]

The cause of this is a security fix which wasn't trivial. Don't think this will get fixed in 67 timeline.

Comment 5

[Patricia Lawless]

Bulk change to wontfix for 68 (P3+ carryover with needinfo).

Comment 6

[Hsin-Yi Tsai (she/her)[:hsinyi]]

Still reproducible with the link from comment 0.

Comment 4 implied the complexity of fixing this. If it deserves a higher priority to have dom core team support, please reach out to me. Thanks.

Comment 7

[Emilio Cobos Álvarez [:emilio]]

Bug 1986042 has a fix.