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0 votes
0 answers
28 views

How much time do I have to save data to local storage when browser visibility changes to hidden?

I want to save page data to local storage upon tab close or reload. I am saving data upon visibilitychange event to hidden. I've read this is the recommended way to do so per Page Lifecycle API and ...
Konrad Jamrozik's user avatar
2 votes
0 answers
42 views

visibilitychange not firing on browser close in firefox

I am trying to send some data for analytics on browser close and the visibilitychange event listener is not being triggered on browser close on firefox. This works as expected in chrome. MDN says this ...
prajot surey's user avatar
0 votes
1 answer
56 views

How to Warn Users Before Changing Tabs or Minimizing Window During an Online Quiz?

I am conducting an online quiz, Here is what I want to achieve: Detect when a user tries to switch tabs or windows. Detect when a user tries to minimize the window. Display a warning message before ...
Lakshmi Intern_AEPL's user avatar
0 votes
0 answers
29 views

How do I hide an entire HTML page, but make the page still renders and still exist?

I'm making an extension to hide the ChromeOS bookshelf by displaying a completely hidden tab, so the device would register a window being drawn, but the user could not interact or notice it. This is ...
grumpyman1's user avatar
2 votes
1 answer
870 views

Browser visibilitychange event no longer fired on page navigation?

The MDN docs say that the visibilitychange event fires with a visibilityState of hidden when a user navigates to a new page, switches tabs, closes the tab, minimizes or closes the browser, or, on ...
jdrub's user avatar
  • 70
1 vote
0 answers
493 views

Detecting browser tab crash in mobile Safari

We are building a web application that sometimes crashes in Mobile Safari due to a jetsam event, where the OS kills the process because of bad memory usage. We think we have a handle on the bug, but ...
SidSethupathi's user avatar
6 votes
1 answer
2k views

`visibilitychange` firing as "hidden" and not "visible" for new window initial load

I am launching a new tab and trying to add a visibilitychange handler for the window in order to add unload behavior, since all the docs recommend that over onunload and pagehide. My plan was to ...
cebo's user avatar
  • 778
4 votes
1 answer
2k views

Do not fire visibilitychange event on document reloads(refresh, page navigation) but fire on close browser, close tab, or switch tab

document.addEventListener("visibilitychange", onVisibilityChange, { passive: true, }); This will fire even when someone navigates away from my page. Ofcourse this is logical. But is ...
Arjen's user avatar
  • 1,120
2 votes
0 answers
546 views

Switching fullscreen triggers a "visibilitychange" event on safari

On Safari (15.3) on Macos (11.6.4), and possibly on ios too, enabling and disabling fullscreen triggers a "visibilitychange" event. It doesn't on Chrome and Firefox. Is there a simple way to ...
user1657853's user avatar
2 votes
0 answers
3k views

Why is my fetch keepalive call on page unload failing in Safari?

I need to send back a bit of data for reporting when the user closes or leaves a specific page. So I set up an API endpoint and am using window.fetch with the keepalive flag set to make sure that the ...
Dark Phoenix's user avatar
1 vote
1 answer
550 views

Is there any way to know when a tab in the browser is covered by a window?

TL;DR: I'm working on a Chrome extension where I need to increase a count only when a tab is visible and not covered by another window. Is there any way to detect this? I've tried using the Page ...
M2K's user avatar
  • 449
0 votes
1 answer
218 views

Prevent SMIL animation from pausing when switching between browser tabs

How to prevent SMIL animation from pausing when switching between browser tabs? I have SVG clock that is animated using <animatetransform>. When you switch to another tab animation freezes and ...
dziku86's user avatar
  • 666
5 votes
1 answer
609 views

Scroll event not fired in Chrome when document.hidden is true. Any workarounds?

The scroll event is never fired by Chrome when the page is hidden, despite the page is actually scrolling. That looks like something they implemented to reduce cpu and network usage for pages that are ...
Wes's user avatar
  • 4,216
7 votes
1 answer
630 views

Visibility API is not working after window.open in Chrome

I was trying to use Visibility API, but it is not working for a child. The minimal example to reproduce: <script> document.onvisibilitychange = () => { console.log(document....
A. Yushchenko's user avatar
0 votes
0 answers
1k views

visibilitychange gets called multiple times if using fullscreen api

I am using visibilitychange event of browser. All looks good. After clicking on one of my buttons, I use fullScreen API to take website into fullscreen mode. The issue that I have is ...
Nika Kurashvili's user avatar

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