1767201 - Blur event is not triggered after an alert

Status: NEW

(Core :: DOM: UI Events & Focus Handling, defect, P3)

Description

[Calixte Denizet (:calixte)]

Attachment: plop.html

STR:

• enter something in the first input;
• then click on the second
• an alert is launched "Leave a", then click on "OK";
• the focus should be on the second input, click on the first one

When leaving the 2nd input a blur event should be triggered, hence an alert with "Leave b" should be displayed.

Comment 1

[Mirko Brodesser (:mbrodesser-Igalia)]

The bug is related to the alert() calls. With console.log() instead, it meets the reporter's expectation (can be reproduced with https://jsfiddle.net/7Lhj2ru4/).

Comment 2

[Mirko Brodesser (:mbrodesser-Igalia)]

Reproducible on Ubuntu 20.04.

The reporter's expectation meets the spec (https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-alert-noargs).

Comment 3

[Mirko Brodesser (:mbrodesser-Igalia)]

Chrome behaves differently. It repeatedly creates "blur" events after clicking in the right input field. Since https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-alert-noargs step 6 is optional, this seems to meet the spec.

Comment 4

[Calixte Denizet (:calixte)]

With mozregression, I got:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=eed530931ca05b277c29539784ac24dea224f368&tochange=75221f28437962d727bfbafb4ea875e4e1ef5d65

Comment 5

[Calixte Denizet (:calixte)]

Could it be a regression from https://bugzilla.mozilla.org/show_bug.cgi?id=1700871 ?

Comment 6

[Alice0775 White]

further bisect:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=6159d3fc46c67b3464a26c0b9e22c028b1b12556&tochange=4aef4780e4f051ade6a0a859ed49f99ad1a336ca

Suspect: Bug 1696908

Comment 7

[BugBot [:suhaib / :marco/ :calixte]]

:hsivonen, since you are the author of the regressor, bug 1696908, could you take a look?
For more information, please visit auto_nag documentation.

Comment 8

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1696908

Comment 9

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

I don't think we will fix for esr91.