1983760 - elvebredd.com - There is a significant delay (15–20 seconds) before the menu appears after clicking the Add/+ button

Status: NEW

(Web Compatibility :: Site Reports, defect, P1)

Description

[Calin Tanase]

Environment:
Operating system: Android 15/Windows 10
Firefox version: Firefox Mobile [phone]

Steps to reproduce:

1. Go to https://elvebredd.com/adopt-me-calculator
2. Click on any "+" button.

Expected Behavior:
The menu with items gets displayed instantly.

Actual Behavior:
The menu appears only after 15-20 seconds.

Notes:

• After those 15-20 seconds the button responds instantly until the page gets refreshed/accessed again
• Reproduces regardless of the status of ETP
• Reproduces in firefox-nightly, and firefox-release
• Does not reproduce in chrome

Created from https://github.com/webcompat/web-bugs/issues/172338

Comment 1

[Calin Tanase]

Attachment: Nightly vs Chrome.mp4

Comment 2

[Alice0775 White]

I can reproduce the issue on Nightly144.0a1 Windows11.

Regression window:
https://hg-edge.mozilla.org/integration/autoland/pushloghtml?fromchange=341d00ab9386c74770e16f26593b95601dd8e3d2&tochange=08dfb36559339368faa24cd5cf3e2d8e0e1e2dca

Suspect: Bug 1847584 - Consistently throttle visibility:hidden frames.

Tentatively, let's flag bug 1847584 as a regressor.

Comment 3

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

:emilio, since you are the author of the regressor, bug 1847584, could you take a look? Also, could you set the severity field?

For more information, please visit BugBot documentation.

Comment 4

[Emilio Cobos Álvarez [:emilio]]

It has a full size visibility: hidden iframe, and they wait till they're fully loaded:

    while (!loaded || !inventoryLoaded) {
        await new Promise(r => setTimeout(r, 50));
    }
    // open

So this is kind of expected.

Comment 5

[Donal Meehan [:dmeehan]]

https://elvebredd.com/adopt-me-calculator is working now, might have been a fix on the site side?