1854492 - pagehide event not raised when tab opened and closed in short time

Status: NEW

(Core :: DOM: Events, defect)

Description

[Richard van der Hoff]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/117.0

Steps to reproduce:

1. Open a tab on a site which registers a pagehide listener
2. Close tab with Ctrl-W
3. Immediately reopen tab

Actual results:

The pagehide event is not fired.

Expected results:

A pagehide event should have been fired when the tab was closed

Comment 1

[Richard van der Hoff]

Some notes on reproducing this:

• I encountered the problem at https://develop.element.io. On that site, if the pagehide handler is not called, then when the tab is reopened, you see "Element is open in another window".
• I was unable to reproduce the problem with a minimal site. I don't know if this is because Element is doing something specific to trigger the problem, or if it's some sort of race which is hard to trigger with a lightweight site.
• To observe the issue, I found it helpful to set the config setting devtools.console.stdout.content to true, to get console.log printed to stdout. Element logs when the pagehide handler is called.

Comment 2

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

The Bugbug bot thinks this bug should belong to the 'Firefox::Tabbed Browser' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 3

[Ina Popescu, Desktop QA]

I've reproduced this issue in the latest versions Nightly 119.0a1 and Firefox 117.0.1 on Windows 10 x64 when using the second time the option "Reopen Closed Tab" thus:

• open https://develop.element.io in a new tab
• close tab
• use "Reopen Closed Tab" option
• repeat all steps

Setting the component and waiting for the developer's opinion about it.
If this is not the correct component, please feel free to change it to a more appropriate one.